Finding the Fourth Proportional to 1,379,552.16, 1,903,753.72 and 863,590.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,379,552.16 : 1,903,753.72 = 863,590.56 : x
2. Step 2: Convert to fraction form
   1,379,552.16/1,903,753.72 = 863,590.56/x
3. Step 3: Cross multiply
   1,379,552.16x = 1,903,753.72 × 863,590.56
4. Step 4: Simplify right side
   1,379,552.16x = 1,644,063,741,156.88
5. Step 5: Solve for x
   x = 1,644,063,741,156.88/1,379,552.16
6. Step 6: Final answer
   x = 1,191,737.28