Finding the Fourth Proportional to 2,669.18, 4,003.20 and 1,025.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,669.18 : 4,003.20 = 1,025.15 : x
2. Step 2: Convert to fraction form
   2,669.18/4,003.20 = 1,025.15/x
3. Step 3: Cross multiply
   2,669.18x = 4,003.20 × 1,025.15
4. Step 4: Simplify right side
   2,669.18x = 4,103,880.48
5. Step 5: Solve for x
   x = 4,103,880.48/2,669.18
6. Step 6: Final answer
   x = 1,537.51