Finding the Fourth Proportional to 870,663.06, 1,306,498.82 and 365,179.05

Step by Step Solution

1. Step 1: Write the proportion equation
   870,663.06 : 1,306,498.82 = 365,179.05 : x
2. Step 2: Convert to fraction form
   870,663.06/1,306,498.82 = 365,179.05/x
3. Step 3: Cross multiply
   870,663.06x = 1,306,498.82 × 365,179.05
4. Step 4: Simplify right side
   870,663.06x = 477,105,996,087.83
5. Step 5: Solve for x
   x = 477,105,996,087.83/870,663.06
6. Step 6: Final answer
   x = 547,980.06