Finding the Fourth Proportional to 1,426.02, 2,139.69 and 604.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426.02 : 2,139.69 = 604.50 : x
2. Step 2: Convert to fraction form
   1,426.02/2,139.69 = 604.50/x
3. Step 3: Cross multiply
   1,426.02x = 2,139.69 × 604.50
4. Step 4: Simplify right side
   1,426.02x = 1,293,442.61
5. Step 5: Solve for x
   x = 1,293,442.61/1,426.02
6. Step 6: Final answer
   x = 907.03