Finding the Fourth Proportional to 1,439,037.83, 2,158,180.71 and 427,887.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,439,037.83 : 2,158,180.71 = 427,887.52 : x
2. Step 2: Convert to fraction form
   1,439,037.83/2,158,180.71 = 427,887.52/x
3. Step 3: Cross multiply
   1,439,037.83x = 2,158,180.71 × 427,887.52
4. Step 4: Simplify right side
   1,439,037.83x = 923,458,584,713.71
5. Step 5: Solve for x
   x = 923,458,584,713.71/1,439,037.83
6. Step 6: Final answer
   x = 641,719.46