Finding the Fourth Proportional to 851,036.10, 1,276,554.15 and 772,304.10

Step by Step Solution

1. Step 1: Write the proportion equation
   851,036.10 : 1,276,554.15 = 772,304.10 : x
2. Step 2: Convert to fraction form
   851,036.10/1,276,554.15 = 772,304.10/x
3. Step 3: Cross multiply
   851,036.10x = 1,276,554.15 × 772,304.10
4. Step 4: Simplify right side
   851,036.10x = 985,888,003,917.02
5. Step 5: Solve for x
   x = 985,888,003,917.02/851,036.10
6. Step 6: Final answer
   x = 1,158,456.15