Finding the Fourth Proportional to 1,773.87, 2,658.78 and 1,380.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,773.87 : 2,658.78 = 1,380.96 : x
2. Step 2: Convert to fraction form
   1,773.87/2,658.78 = 1,380.96/x
3. Step 3: Cross multiply
   1,773.87x = 2,658.78 × 1,380.96
4. Step 4: Simplify right side
   1,773.87x = 3,671,668.83
5. Step 5: Solve for x
   x = 3,671,668.83/1,773.87
6. Step 6: Final answer
   x = 2,069.86