Finding the Fourth Proportional to 2,728,291.61, 4,091,311.42 and 931,319.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,728,291.61 : 4,091,311.42 = 931,319.98 : x
2. Step 2: Convert to fraction form
   2,728,291.61/4,091,311.42 = 931,319.98/x
3. Step 3: Cross multiply
   2,728,291.61x = 4,091,311.42 × 931,319.98
4. Step 4: Simplify right side
   2,728,291.61x = 3,810,320,057,291.59
5. Step 5: Solve for x
   x = 3,810,320,057,291.59/2,728,291.61
6. Step 6: Final answer
   x = 1,396,595.60