Finding the Fourth Proportional to 2,139,050.57, 3,208,305.20 and 699,610.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,139,050.57 : 3,208,305.20 = 699,610.91 : x
2. Step 2: Convert to fraction form
   2,139,050.57/3,208,305.20 = 699,610.91/x
3. Step 3: Cross multiply
   2,139,050.57x = 3,208,305.20 × 699,610.91
4. Step 4: Simplify right side
   2,139,050.57x = 2,244,565,300,990.15
5. Step 5: Solve for x
   x = 2,244,565,300,990.15/2,139,050.57
6. Step 6: Final answer
   x = 1,049,327.84