Finding the Fourth Proportional to 2,061.60, 3,087.52 and 1,517.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,061.60 : 3,087.52 = 1,517.28 : x
2. Step 2: Convert to fraction form
   2,061.60/3,087.52 = 1,517.28/x
3. Step 3: Cross multiply
   2,061.60x = 3,087.52 × 1,517.28
4. Step 4: Simplify right side
   2,061.60x = 4,684,632.35
5. Step 5: Solve for x
   x = 4,684,632.35/2,061.60
6. Step 6: Final answer
   x = 2,272.33