Finding the Fourth Proportional to 1,170,948.79, 1,615,017.78 and 1,007,882.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,170,948.79 : 1,615,017.78 = 1,007,882.83 : x
2. Step 2: Convert to fraction form
   1,170,948.79/1,615,017.78 = 1,007,882.83/x
3. Step 3: Cross multiply
   1,170,948.79x = 1,615,017.78 × 1,007,882.83
4. Step 4: Simplify right side
   1,170,948.79x = 1,627,748,690,606.72
5. Step 5: Solve for x
   x = 1,627,748,690,606.72/1,170,948.79
6. Step 6: Final answer
   x = 1,390,110.91