Finding the Fourth Proportional to 2,657,826.80, 3,984,968.68 and 1,291,236.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,657,826.80 : 3,984,968.68 = 1,291,236.12 : x
2. Step 2: Convert to fraction form
   2,657,826.80/3,984,968.68 = 1,291,236.12/x
3. Step 3: Cross multiply
   2,657,826.80x = 3,984,968.68 × 1,291,236.12
4. Step 4: Simplify right side
   2,657,826.80x = 5,145,535,496,684.72
5. Step 5: Solve for x
   x = 5,145,535,496,684.72/2,657,826.80
6. Step 6: Final answer
   x = 1,935,993.53