Finding the Fourth Proportional to 1,172,079.42, 1,755,844.27 and 863,771.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,172,079.42 : 1,755,844.27 = 863,771.47 : x
2. Step 2: Convert to fraction form
   1,172,079.42/1,755,844.27 = 863,771.47/x
3. Step 3: Cross multiply
   1,172,079.42x = 1,755,844.27 × 863,771.47
4. Step 4: Simplify right side
   1,172,079.42x = 1,516,648,189,516.56
5. Step 5: Solve for x
   x = 1,516,648,189,516.56/1,172,079.42
6. Step 6: Final answer
   x = 1,293,980.74