Finding the Fourth Proportional to 2,166,144.56, 2,989,243.68 and 1,199,254.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,166,144.56 : 2,989,243.68 = 1,199,254.04 : x
2. Step 2: Convert to fraction form
   2,166,144.56/2,989,243.68 = 1,199,254.04/x
3. Step 3: Cross multiply
   2,166,144.56x = 2,989,243.68 × 1,199,254.04
4. Step 4: Simplify right side
   2,166,144.56x = 3,584,862,559,784.47
5. Step 5: Solve for x
   x = 3,584,862,559,784.47/2,166,144.56
6. Step 6: Final answer
   x = 1,654,950.75