Finding the Fourth Proportional to 1,112,070.72, 1,667,850.24 and 662,918.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,112,070.72 : 1,667,850.24 = 662,918.40 : x
2. Step 2: Convert to fraction form
   1,112,070.72/1,667,850.24 = 662,918.40/x
3. Step 3: Cross multiply
   1,112,070.72x = 1,667,850.24 × 662,918.40
4. Step 4: Simplify right side
   1,112,070.72x = 1,105,648,612,540.42
5. Step 5: Solve for x
   x = 1,105,648,612,540.42/1,112,070.72
6. Step 6: Final answer
   x = 994,225.09