Finding the Fourth Proportional to 1,119,902.10, 1,679,853.15 and 647,510.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,119,902.10 : 1,679,853.15 = 647,510.10 : x
2. Step 2: Convert to fraction form
   1,119,902.10/1,679,853.15 = 647,510.10/x
3. Step 3: Cross multiply
   1,119,902.10x = 1,679,853.15 × 647,510.10
4. Step 4: Simplify right side
   1,119,902.10x = 1,087,721,881,141.82
5. Step 5: Solve for x
   x = 1,087,721,881,141.82/1,119,902.10
6. Step 6: Final answer
   x = 971,265.15