Finding the Fourth Proportional to 1,426.21, 2,139.54 and 501.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426.21 : 2,139.54 = 501.82 : x
2. Step 2: Convert to fraction form
   1,426.21/2,139.54 = 501.82/x
3. Step 3: Cross multiply
   1,426.21x = 2,139.54 × 501.82
4. Step 4: Simplify right side
   1,426.21x = 1,073,663.96
5. Step 5: Solve for x
   x = 1,073,663.96/1,426.21
6. Step 6: Final answer
   x = 752.81