Finding the Fourth Proportional to 2,912,488.72, 4,368,730.78 and 782,572.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,912,488.72 : 4,368,730.78 = 782,572.84 : x
2. Step 2: Convert to fraction form
   2,912,488.72/4,368,730.78 = 782,572.84/x
3. Step 3: Cross multiply
   2,912,488.72x = 4,368,730.78 × 782,572.84
4. Step 4: Simplify right side
   2,912,488.72x = 3,418,850,053,700.02
5. Step 5: Solve for x
   x = 3,418,850,053,700.02/2,912,488.72
6. Step 6: Final answer
   x = 1,173,858.64