Finding the Fourth Proportional to 1,139,941.98, 1,573,033.23 and 630,633.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,139,941.98 : 1,573,033.23 = 630,633.42 : x
2. Step 2: Convert to fraction form
   1,139,941.98/1,573,033.23 = 630,633.42/x
3. Step 3: Cross multiply
   1,139,941.98x = 1,573,033.23 × 630,633.42
4. Step 4: Simplify right side
   1,139,941.98x = 992,007,325,608.55
5. Step 5: Solve for x
   x = 992,007,325,608.55/1,139,941.98
6. Step 6: Final answer
   x = 870,226.15