Finding the Fourth Proportional to 1,426.55, 2,140.43 and 502.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426.55 : 2,140.43 = 502.61 : x
2. Step 2: Convert to fraction form
   1,426.55/2,140.43 = 502.61/x
3. Step 3: Cross multiply
   1,426.55x = 2,140.43 × 502.61
4. Step 4: Simplify right side
   1,426.55x = 1,075,788.31
5. Step 5: Solve for x
   x = 1,075,788.31/1,426.55
6. Step 6: Final answer
   x = 754.12