Finding the Fourth Proportional to 1,410.72, 2,112.66 and 759.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,410.72 : 2,112.66 = 759.84 : x
2. Step 2: Convert to fraction form
   1,410.72/2,112.66 = 759.84/x
3. Step 3: Cross multiply
   1,410.72x = 2,112.66 × 759.84
4. Step 4: Simplify right side
   1,410.72x = 1,605,283.57
5. Step 5: Solve for x
   x = 1,605,283.57/1,410.72
6. Step 6: Final answer
   x = 1,137.92