Finding the Fourth Proportional to 3,686.16, 5,085.24 and 2,426.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,686.16 : 5,085.24 = 2,426.88 : x
2. Step 2: Convert to fraction form
   3,686.16/5,085.24 = 2,426.88/x
3. Step 3: Cross multiply
   3,686.16x = 5,085.24 × 2,426.88
4. Step 4: Simplify right side
   3,686.16x = 12,341,267.25
5. Step 5: Solve for x
   x = 12,341,267.25/3,686.16
6. Step 6: Final answer
   x = 3,348.00