Finding the Fourth Proportional to 791,012.79, 1,091,597.18 and 428,436.54

Step by Step Solution

1. Step 1: Write the proportion equation
   791,012.79 : 1,091,597.18 = 428,436.54 : x
2. Step 2: Convert to fraction form
   791,012.79/1,091,597.18 = 428,436.54/x
3. Step 3: Cross multiply
   791,012.79x = 1,091,597.18 × 428,436.54
4. Step 4: Simplify right side
   791,012.79x = 467,680,116,730.78
5. Step 5: Solve for x
   x = 467,680,116,730.78/791,012.79
6. Step 6: Final answer
   x = 591,242.17