Finding the Fourth Proportional to 1,995,978.83, 2,753,581.70 and 1,221,644.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,995,978.83 : 2,753,581.70 = 1,221,644.15 : x
2. Step 2: Convert to fraction form
   1,995,978.83/2,753,581.70 = 1,221,644.15/x
3. Step 3: Cross multiply
   1,995,978.83x = 2,753,581.70 × 1,221,644.15
4. Step 4: Simplify right side
   1,995,978.83x = 3,363,896,955,475.93
5. Step 5: Solve for x
   x = 3,363,896,955,475.93/1,995,978.83
6. Step 6: Final answer
   x = 1,685,336.99