Finding the Fourth Proportional to 1,386,399.83, 2,079,593.27 and 375,519.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,386,399.83 : 2,079,593.27 = 375,519.83 : x
2. Step 2: Convert to fraction form
   1,386,399.83/2,079,593.27 = 375,519.83/x
3. Step 3: Cross multiply
   1,386,399.83x = 2,079,593.27 × 375,519.83
4. Step 4: Simplify right side
   1,386,399.83x = 780,928,509,341.95
5. Step 5: Solve for x
   x = 780,928,509,341.95/1,386,399.83
6. Step 6: Final answer
   x = 563,277.99