Finding the Fourth Proportional to 2,109,659.78, 2,911,344.53 and 1,142,790.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,109,659.78 : 2,911,344.53 = 1,142,790.12 : x
2. Step 2: Convert to fraction form
   2,109,659.78/2,911,344.53 = 1,142,790.12/x
3. Step 3: Cross multiply
   2,109,659.78x = 2,911,344.53 × 1,142,790.12
4. Step 4: Simplify right side
   2,109,659.78x = 3,327,055,759,086.09
5. Step 5: Solve for x
   x = 3,327,055,759,086.09/2,109,659.78
6. Step 6: Final answer
   x = 1,577,057.96