Finding the Fourth Proportional to 5,124.46, 7,685.90 and 1,426.30

Step by Step Solution

1. Step 1: Write the proportion equation
   5,124.46 : 7,685.90 = 1,426.30 : x
2. Step 2: Convert to fraction form
   5,124.46/7,685.90 = 1,426.30/x
3. Step 3: Cross multiply
   5,124.46x = 7,685.90 × 1,426.30
4. Step 4: Simplify right side
   5,124.46x = 10,962,399.17
5. Step 5: Solve for x
   x = 10,962,399.17/5,124.46
6. Step 6: Final answer
   x = 2,139.23