Finding the Fourth Proportional to 1,055,105.56, 1,582,335.15 and 381,103.75

Step by Step Solution

1. Step 1: Write the proportion equation
   1,055,105.56 : 1,582,335.15 = 381,103.75 : x
2. Step 2: Convert to fraction form
   1,055,105.56/1,582,335.15 = 381,103.75/x
3. Step 3: Cross multiply
   1,055,105.56x = 1,582,335.15 × 381,103.75
4. Step 4: Simplify right side
   1,055,105.56x = 603,033,862,114.30
5. Step 5: Solve for x
   x = 603,033,862,114.30/1,055,105.56
6. Step 6: Final answer
   x = 571,538.89