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Finding the Fourth Proportional to 1,093.19, 1,640.27 and 573.07

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Solution

The fourth proportional to 1,093.19, 1,640.27 and 573.07 is: 859.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,093.19 : 1,640.27 = 573.07 : x
  2. Step 2: Convert to fraction form
    1,093.19/1,640.27 = 573.07/x
  3. Step 3: Cross multiply
    1,093.19x = 1,640.27 × 573.07
  4. Step 4: Simplify right side
    1,093.19x = 939,989.94
  5. Step 5: Solve for x
    x = 939,989.94/1,093.19
  6. Step 6: Final answer
    x = 859.86

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