Finding the Fourth Proportional to 2,155,308.24, 2,974,268.16 and 1,188,422.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,155,308.24 : 2,974,268.16 = 1,188,422.16 : x
2. Step 2: Convert to fraction form
   2,155,308.24/2,974,268.16 = 1,188,422.16/x
3. Step 3: Cross multiply
   2,155,308.24x = 2,974,268.16 × 1,188,422.16
4. Step 4: Simplify right side
   2,155,308.24x = 3,534,686,191,126.43
5. Step 5: Solve for x
   x = 3,534,686,191,126.43/2,155,308.24
6. Step 6: Final answer
   x = 1,639,991.03