Finding the Fourth Proportional to 1,854.24, 2,555.04 and 1,521.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,854.24 : 2,555.04 = 1,521.60 : x
2. Step 2: Convert to fraction form
   1,854.24/2,555.04 = 1,521.60/x
3. Step 3: Cross multiply
   1,854.24x = 2,555.04 × 1,521.60
4. Step 4: Simplify right side
   1,854.24x = 3,887,748.86
5. Step 5: Solve for x
   x = 3,887,748.86/1,854.24
6. Step 6: Final answer
   x = 2,096.68