Finding the Fourth Proportional to 2,158,453.32, 2,978,689.73 and 1,191,584.13

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158,453.32 : 2,978,689.73 = 1,191,584.13 : x
2. Step 2: Convert to fraction form
   2,158,453.32/2,978,689.73 = 1,191,584.13/x
3. Step 3: Cross multiply
   2,158,453.32x = 2,978,689.73 × 1,191,584.13
4. Step 4: Simplify right side
   2,158,453.32x = 3,549,359,404,504.06
5. Step 5: Solve for x
   x = 3,549,359,404,504.06/2,158,453.32
6. Step 6: Final answer
   x = 1,644,399.43