Finding the Fourth Proportional to 791,150.48, 1,091,791.01 and 428,574.34

Step by Step Solution

1. Step 1: Write the proportion equation
   791,150.48 : 1,091,791.01 = 428,574.34 : x
2. Step 2: Convert to fraction form
   791,150.48/1,091,791.01 = 428,574.34/x
3. Step 3: Cross multiply
   791,150.48x = 1,091,791.01 × 428,574.34
4. Step 4: Simplify right side
   791,150.48x = 467,913,613,964.86
5. Step 5: Solve for x
   x = 467,913,613,964.86/791,150.48
6. Step 6: Final answer
   x = 591,434.41