Finding the Fourth Proportional to 1,280,103.63, 1,766,527.83 and 699,323.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,280,103.63 : 1,766,527.83 = 699,323.91 : x
2. Step 2: Convert to fraction form
   1,280,103.63/1,766,527.83 = 699,323.91/x
3. Step 3: Cross multiply
   1,280,103.63x = 1,766,527.83 × 699,323.91
4. Step 4: Simplify right side
   1,280,103.63x = 1,235,375,149,199.42
5. Step 5: Solve for x
   x = 1,235,375,149,199.42/1,280,103.63
6. Step 6: Final answer
   x = 965,058.70