Finding the Fourth Proportional to 1,048,134.95, 1,571,081.39 and 478,662.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,048,134.95 : 1,571,081.39 = 478,662.71 : x
2. Step 2: Convert to fraction form
   1,048,134.95/1,571,081.39 = 478,662.71/x
3. Step 3: Cross multiply
   1,048,134.95x = 1,571,081.39 × 478,662.71
4. Step 4: Simplify right side
   1,048,134.95x = 752,018,069,109.22
5. Step 5: Solve for x
   x = 752,018,069,109.22/1,048,134.95
6. Step 6: Final answer
   x = 717,482.10