Finding the Fourth Proportional to 1,792.52, 2,689.32 and 1,209.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,792.52 : 2,689.32 = 1,209.86 : x
2. Step 2: Convert to fraction form
   1,792.52/2,689.32 = 1,209.86/x
3. Step 3: Cross multiply
   1,792.52x = 2,689.32 × 1,209.86
4. Step 4: Simplify right side
   1,792.52x = 3,253,687.25
5. Step 5: Solve for x
   x = 3,253,687.25/1,792.52
6. Step 6: Final answer
   x = 1,815.15