Finding the Fourth Proportional to 2,158,194.24, 2,978,472.96 and 1,191,510.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158,194.24 : 2,978,472.96 = 1,191,510.72 : x
2. Step 2: Convert to fraction form
   2,158,194.24/2,978,472.96 = 1,191,510.72/x
3. Step 3: Cross multiply
   2,158,194.24x = 2,978,472.96 × 1,191,510.72
4. Step 4: Simplify right side
   2,158,194.24x = 3,548,882,461,070.13
5. Step 5: Solve for x
   x = 3,548,882,461,070.13/2,158,194.24
6. Step 6: Final answer
   x = 1,644,375.84