Finding the Fourth Proportional to 1,065,641.55, 1,598,425.47 and 266,929.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,065,641.55 : 1,598,425.47 = 266,929.98 : x
2. Step 2: Convert to fraction form
   1,065,641.55/1,598,425.47 = 266,929.98/x
3. Step 3: Cross multiply
   1,065,641.55x = 1,598,425.47 × 266,929.98
4. Step 4: Simplify right side
   1,065,641.55x = 426,667,678,738.59
5. Step 5: Solve for x
   x = 426,667,678,738.59/1,065,641.55
6. Step 6: Final answer
   x = 400,385.74