Finding the Fourth Proportional to 2,158,098.56, 2,978,176.16 and 1,191,229.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158,098.56 : 2,978,176.16 = 1,191,229.08 : x
2. Step 2: Convert to fraction form
   2,158,098.56/2,978,176.16 = 1,191,229.08/x
3. Step 3: Cross multiply
   2,158,098.56x = 2,978,176.16 × 1,191,229.08
4. Step 4: Simplify right side
   2,158,098.56x = 3,547,690,047,154.73
5. Step 5: Solve for x
   x = 3,547,690,047,154.73/2,158,098.56
6. Step 6: Final answer
   x = 1,643,896.21