Finding the Fourth Proportional to 756,077.79, 1,042,686.48 and 551,805.15

Step by Step Solution

1. Step 1: Write the proportion equation
   756,077.79 : 1,042,686.48 = 551,805.15 : x
2. Step 2: Convert to fraction form
   756,077.79/1,042,686.48 = 551,805.15/x
3. Step 3: Cross multiply
   756,077.79x = 1,042,686.48 × 551,805.15
4. Step 4: Simplify right side
   756,077.79x = 575,359,769,499.37
5. Step 5: Solve for x
   x = 575,359,769,499.37/756,077.79
6. Step 6: Final answer
   x = 760,979.59