Finding the Fourth Proportional to 1,870.60, 2,805.27 and 759.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.60 : 2,805.27 = 759.73 : x
2. Step 2: Convert to fraction form
   1,870.60/2,805.27 = 759.73/x
3. Step 3: Cross multiply
   1,870.60x = 2,805.27 × 759.73
4. Step 4: Simplify right side
   1,870.60x = 2,131,247.78
5. Step 5: Solve for x
   x = 2,131,247.78/1,870.60
6. Step 6: Final answer
   x = 1,139.34