Finding the Fourth Proportional to 1,026,975.06, 1,540,602.71 and 427,796.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,026,975.06 : 1,540,602.71 = 427,796.10 : x
2. Step 2: Convert to fraction form
   1,026,975.06/1,540,602.71 = 427,796.10/x
3. Step 3: Cross multiply
   1,026,975.06x = 1,540,602.71 × 427,796.10
4. Step 4: Simplify right side
   1,026,975.06x = 659,063,830,987.43
5. Step 5: Solve for x
   x = 659,063,830,987.43/1,026,975.06
6. Step 6: Final answer
   x = 641,752.52