Finding the Fourth Proportional to 1,083.31, 1,624.61 and 352.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,083.31 : 1,624.61 = 352.71 : x
2. Step 2: Convert to fraction form
   1,083.31/1,624.61 = 352.71/x
3. Step 3: Cross multiply
   1,083.31x = 1,624.61 × 352.71
4. Step 4: Simplify right side
   1,083.31x = 573,023.17
5. Step 5: Solve for x
   x = 573,023.17/1,083.31
6. Step 6: Final answer
   x = 528.96