Finding the Fourth Proportional to 2,579,658.12, 3,869,055.18 and 782,111.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,579,658.12 : 3,869,055.18 = 782,111.88 : x
2. Step 2: Convert to fraction form
   2,579,658.12/3,869,055.18 = 782,111.88/x
3. Step 3: Cross multiply
   2,579,658.12x = 3,869,055.18 × 782,111.88
4. Step 4: Simplify right side
   2,579,658.12x = 3,026,034,020,653.54
5. Step 5: Solve for x
   x = 3,026,034,020,653.54/2,579,658.12
6. Step 6: Final answer
   x = 1,173,036.84