Finding the Fourth Proportional to 920,953.38, 1,261,710.72 and 886,436.98

Step by Step Solution

1. Step 1: Write the proportion equation
   920,953.38 : 1,261,710.72 = 886,436.98 : x
2. Step 2: Convert to fraction form
   920,953.38/1,261,710.72 = 886,436.98/x
3. Step 3: Cross multiply
   920,953.38x = 1,261,710.72 × 886,436.98
4. Step 4: Simplify right side
   920,953.38x = 1,118,427,040,270.43
5. Step 5: Solve for x
   x = 1,118,427,040,270.43/920,953.38
6. Step 6: Final answer
   x = 1,214,423.08