Finding the Fourth Proportional to 1,491,061.37, 2,236,665.86 and 426,260.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,491,061.37 : 2,236,665.86 = 426,260.27 : x
2. Step 2: Convert to fraction form
   1,491,061.37/2,236,665.86 = 426,260.27/x
3. Step 3: Cross multiply
   1,491,061.37x = 2,236,665.86 × 426,260.27
4. Step 4: Simplify right side
   1,491,061.37x = 953,401,798,442.22
5. Step 5: Solve for x
   x = 953,401,798,442.22/1,491,061.37
6. Step 6: Final answer
   x = 639,411.51