Finding the Fourth Proportional to 2,792.58, 4,186.71 and 1,252.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,792.58 : 4,186.71 = 1,252.50 : x
2. Step 2: Convert to fraction form
   2,792.58/4,186.71 = 1,252.50/x
3. Step 3: Cross multiply
   2,792.58x = 4,186.71 × 1,252.50
4. Step 4: Simplify right side
   2,792.58x = 5,243,854.28
5. Step 5: Solve for x
   x = 5,243,854.28/2,792.58
6. Step 6: Final answer
   x = 1,877.78