Finding the Fourth Proportional to 3,123.60, 4,686.16 and 2,200.95

Step by Step Solution

1. Step 1: Write the proportion equation
   3,123.60 : 4,686.16 = 2,200.95 : x
2. Step 2: Convert to fraction form
   3,123.60/4,686.16 = 2,200.95/x
3. Step 3: Cross multiply
   3,123.60x = 4,686.16 × 2,200.95
4. Step 4: Simplify right side
   3,123.60x = 10,314,024.18
5. Step 5: Solve for x
   x = 10,314,024.18/3,123.60
6. Step 6: Final answer
   x = 3,301.97