Finding the Fourth Proportional to 3,572.71, 5,355.72 and 1,929.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,572.71 : 5,355.72 = 1,929.42 : x
2. Step 2: Convert to fraction form
   3,572.71/5,355.72 = 1,929.42/x
3. Step 3: Cross multiply
   3,572.71x = 5,355.72 × 1,929.42
4. Step 4: Simplify right side
   3,572.71x = 10,333,433.28
5. Step 5: Solve for x
   x = 10,333,433.28/3,572.71
6. Step 6: Final answer
   x = 2,892.33