Finding the Fourth Proportional to 1,155,460.26, 1,594,505.34 and 639,200.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,155,460.26 : 1,594,505.34 = 639,200.82 : x
2. Step 2: Convert to fraction form
   1,155,460.26/1,594,505.34 = 639,200.82/x
3. Step 3: Cross multiply
   1,155,460.26x = 1,594,505.34 × 639,200.82
4. Step 4: Simplify right side
   1,155,460.26x = 1,019,209,120,822.38
5. Step 5: Solve for x
   x = 1,019,209,120,822.38/1,155,460.26
6. Step 6: Final answer
   x = 882,080.64