Finding the Fourth Proportional to 834,019.74, 1,240,300.55 and 807,447.69

Step by Step Solution

1. Step 1: Write the proportion equation
   834,019.74 : 1,240,300.55 = 807,447.69 : x
2. Step 2: Convert to fraction form
   834,019.74/1,240,300.55 = 807,447.69/x
3. Step 3: Cross multiply
   834,019.74x = 1,240,300.55 × 807,447.69
4. Step 4: Simplify right side
   834,019.74x = 1,001,477,816,021.85
5. Step 5: Solve for x
   x = 1,001,477,816,021.85/834,019.74
6. Step 6: Final answer
   x = 1,200,784.31