Finding the Fourth Proportional to 1,803,426.56, 2,488,698.24 and 998,593.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,803,426.56 : 2,488,698.24 = 998,593.28 : x
2. Step 2: Convert to fraction form
   1,803,426.56/2,488,698.24 = 998,593.28/x
3. Step 3: Cross multiply
   1,803,426.56x = 2,488,698.24 × 998,593.28
4. Step 4: Simplify right side
   1,803,426.56x = 2,485,197,338,411.83
5. Step 5: Solve for x
   x = 2,485,197,338,411.83/1,803,426.56
6. Step 6: Final answer
   x = 1,378,041.89