Finding the Fourth Proportional to 1,753,789.45, 2,420,633.87 and 1,028,870.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,753,789.45 : 2,420,633.87 = 1,028,870.05 : x
2. Step 2: Convert to fraction form
   1,753,789.45/2,420,633.87 = 1,028,870.05/x
3. Step 3: Cross multiply
   1,753,789.45x = 2,420,633.87 × 1,028,870.05
4. Step 4: Simplify right side
   1,753,789.45x = 2,490,517,690,858.59
5. Step 5: Solve for x
   x = 2,490,517,690,858.59/1,753,789.45
6. Step 6: Final answer
   x = 1,420,077.93