Finding the Fourth Proportional to 2,158,151.94, 2,978,250.12 and 1,191,282.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158,151.94 : 2,978,250.12 = 1,191,282.48 : x
2. Step 2: Convert to fraction form
   2,158,151.94/2,978,250.12 = 1,191,282.48/x
3. Step 3: Cross multiply
   2,158,151.94x = 2,978,250.12 × 1,191,282.48
4. Step 4: Simplify right side
   2,158,151.94x = 3,547,937,189,013.90
5. Step 5: Solve for x
   x = 3,547,937,189,013.90/2,158,151.94
6. Step 6: Final answer
   x = 1,643,970.07