Finding the Fourth Proportional to 1,067,357.12, 1,472,940.72 and 583,916.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,067,357.12 : 1,472,940.72 = 583,916.72 : x
2. Step 2: Convert to fraction form
   1,067,357.12/1,472,940.72 = 583,916.72/x
3. Step 3: Cross multiply
   1,067,357.12x = 1,472,940.72 × 583,916.72
4. Step 4: Simplify right side
   1,067,357.12x = 860,074,713,976.84
5. Step 5: Solve for x
   x = 860,074,713,976.84/1,067,357.12
6. Step 6: Final answer
   x = 805,798.45