Finding the Fourth Proportional to 1,085.32, 1,627.98 and 355.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,085.32 : 1,627.98 = 355.04 : x
2. Step 2: Convert to fraction form
   1,085.32/1,627.98 = 355.04/x
3. Step 3: Cross multiply
   1,085.32x = 1,627.98 × 355.04
4. Step 4: Simplify right side
   1,085.32x = 577,998.02
5. Step 5: Solve for x
   x = 577,998.02/1,085.32
6. Step 6: Final answer
   x = 532.56