Finding the Fourth Proportional to 2,616.50, 3,925.32 and 1,077.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,616.50 : 3,925.32 = 1,077.50 : x
2. Step 2: Convert to fraction form
   2,616.50/3,925.32 = 1,077.50/x
3. Step 3: Cross multiply
   2,616.50x = 3,925.32 × 1,077.50
4. Step 4: Simplify right side
   2,616.50x = 4,229,532.30
5. Step 5: Solve for x
   x = 4,229,532.30/2,616.50
6. Step 6: Final answer
   x = 1,616.48