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Finding the Fourth Proportional to 1,155.93, 1,730.79 and 1,058.43

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Solution

The fourth proportional to 1,155.93, 1,730.79 and 1,058.43 is: 1,584.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155.93 : 1,730.79 = 1,058.43 : x
  2. Step 2: Convert to fraction form
    1,155.93/1,730.79 = 1,058.43/x
  3. Step 3: Cross multiply
    1,155.93x = 1,730.79 × 1,058.43
  4. Step 4: Simplify right side
    1,155.93x = 1,831,920.06
  5. Step 5: Solve for x
    x = 1,831,920.06/1,155.93
  6. Step 6: Final answer
    x = 1,584.80

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