Finding the Fourth Proportional to 2,158,047.50, 2,978,105.72 and 1,191,178.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158,047.50 : 2,978,105.72 = 1,191,178.04 : x
2. Step 2: Convert to fraction form
   2,158,047.50/2,978,105.72 = 1,191,178.04/x
3. Step 3: Cross multiply
   2,158,047.50x = 2,978,105.72 × 1,191,178.04
4. Step 4: Simplify right side
   2,158,047.50x = 3,547,454,113,615.97
5. Step 5: Solve for x
   x = 3,547,454,113,615.97/2,158,047.50
6. Step 6: Final answer
   x = 1,643,825.78