Finding the Fourth Proportional to 2,166,143.83, 2,989,388.71 and 1,199,380.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,166,143.83 : 2,989,388.71 = 1,199,380.48 : x
2. Step 2: Convert to fraction form
   2,166,143.83/2,989,388.71 = 1,199,380.48/x
3. Step 3: Cross multiply
   2,166,143.83x = 2,989,388.71 × 1,199,380.48
4. Step 4: Simplify right side
   2,166,143.83x = 3,585,414,444,962.54
5. Step 5: Solve for x
   x = 3,585,414,444,962.54/2,166,143.83
6. Step 6: Final answer
   x = 1,655,206.09