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Finding the Fourth Proportional to 1,578.11, 2,368.38 and 713.03

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Solution

The fourth proportional to 1,578.11, 2,368.38 and 713.03 is: 1,070.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578.11 : 2,368.38 = 713.03 : x
  2. Step 2: Convert to fraction form
    1,578.11/2,368.38 = 713.03/x
  3. Step 3: Cross multiply
    1,578.11x = 2,368.38 × 713.03
  4. Step 4: Simplify right side
    1,578.11x = 1,688,725.99
  5. Step 5: Solve for x
    x = 1,688,725.99/1,578.11
  6. Step 6: Final answer
    x = 1,070.09

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