Finding the Fourth Proportional to 2,088.56, 3,132.05 and 772.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,088.56 : 3,132.05 = 772.16 : x
2. Step 2: Convert to fraction form
   2,088.56/3,132.05 = 772.16/x
3. Step 3: Cross multiply
   2,088.56x = 3,132.05 × 772.16
4. Step 4: Simplify right side
   2,088.56x = 2,418,424.21
5. Step 5: Solve for x
   x = 2,418,424.21/2,088.56
6. Step 6: Final answer
   x = 1,157.94