Finding the Fourth Proportional to 3,123.35, 4,686.24 and 2,868.20

Step by Step Solution

1. Step 1: Write the proportion equation
   3,123.35 : 4,686.24 = 2,868.20 : x
2. Step 2: Convert to fraction form
   3,123.35/4,686.24 = 2,868.20/x
3. Step 3: Cross multiply
   3,123.35x = 4,686.24 × 2,868.20
4. Step 4: Simplify right side
   3,123.35x = 13,441,050.14
5. Step 5: Solve for x
   x = 13,441,050.14/3,123.35
6. Step 6: Final answer
   x = 4,303.42