Finding the Fourth Proportional to 2,792.50, 4,188.14 and 1,385.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,792.50 : 4,188.14 = 1,385.52 : x
2. Step 2: Convert to fraction form
   2,792.50/4,188.14 = 1,385.52/x
3. Step 3: Cross multiply
   2,792.50x = 4,188.14 × 1,385.52
4. Step 4: Simplify right side
   2,792.50x = 5,802,751.73
5. Step 5: Solve for x
   x = 5,802,751.73/2,792.50
6. Step 6: Final answer
   x = 2,077.98