Finding the Fourth Proportional to 1,123,570.85, 1,549,485.55 and 715,247.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123,570.85 : 1,549,485.55 = 715,247.01 : x
2. Step 2: Convert to fraction form
   1,123,570.85/1,549,485.55 = 715,247.01/x
3. Step 3: Cross multiply
   1,123,570.85x = 1,549,485.55 × 715,247.01
4. Step 4: Simplify right side
   1,123,570.85x = 1,108,264,907,569.76
5. Step 5: Solve for x
   x = 1,108,264,907,569.76/1,123,570.85
6. Step 6: Final answer
   x = 986,377.42