Finding the Fourth Proportional to 914,790, 1,262,410.20 and 557,094

Step by Step Solution

1. Step 1: Write the proportion equation
   914,790 : 1,262,410.20 = 557,094 : x
2. Step 2: Convert to fraction form
   914,790/1,262,410.20 = 557,094/x
3. Step 3: Cross multiply
   914,790x = 1,262,410.20 × 557,094
4. Step 4: Simplify right side
   914,790x = 703,281,147,958.80
5. Step 5: Solve for x
   x = 703,281,147,958.80/914,790
6. Step 6: Final answer
   x = 768,789.72