Finding the Fourth Proportional to 2,124,733.32, 3,187,722.83 and 685,387.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,124,733.32 : 3,187,722.83 = 685,387.98 : x
2. Step 2: Convert to fraction form
   2,124,733.32/3,187,722.83 = 685,387.98/x
3. Step 3: Cross multiply
   2,124,733.32x = 3,187,722.83 × 685,387.98
4. Step 4: Simplify right side
   2,124,733.32x = 2,184,826,907,826.64
5. Step 5: Solve for x
   x = 2,184,826,907,826.64/2,124,733.32
6. Step 6: Final answer
   x = 1,028,282.88