Finding the Fourth Proportional to 1,113,826.17, 1,536,816.68 and 630,391.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,113,826.17 : 1,536,816.68 = 630,391.33 : x
2. Step 2: Convert to fraction form
   1,113,826.17/1,536,816.68 = 630,391.33/x
3. Step 3: Cross multiply
   1,113,826.17x = 1,536,816.68 × 630,391.33
4. Step 4: Simplify right side
   1,113,826.17x = 968,795,912,004.42
5. Step 5: Solve for x
   x = 968,795,912,004.42/1,113,826.17
6. Step 6: Final answer
   x = 869,790.94