Finding the Fourth Proportional to 1,484,108.90, 2,227,200.15 and 643,264.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,484,108.90 : 2,227,200.15 = 643,264.10 : x
2. Step 2: Convert to fraction form
   1,484,108.90/2,227,200.15 = 643,264.10/x
3. Step 3: Cross multiply
   1,484,108.90x = 2,227,200.15 × 643,264.10
4. Step 4: Simplify right side
   1,484,108.90x = 1,432,677,900,009.62
5. Step 5: Solve for x
   x = 1,432,677,900,009.62/1,484,108.90
6. Step 6: Final answer
   x = 965,345.53