Finding the Fourth Proportional to 2,166,312.08, 2,989,604.15 and 1,199,442.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,166,312.08 : 2,989,604.15 = 1,199,442.42 : x
2. Step 2: Convert to fraction form
   2,166,312.08/2,989,604.15 = 1,199,442.42/x
3. Step 3: Cross multiply
   2,166,312.08x = 2,989,604.15 × 1,199,442.42
4. Step 4: Simplify right side
   2,166,312.08x = 3,585,858,030,520.83
5. Step 5: Solve for x
   x = 3,585,858,030,520.83/2,166,312.08
6. Step 6: Final answer
   x = 1,655,282.30