Finding the Fourth Proportional to 2,191.56, 3,288.30 and 1,151.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,191.56 : 3,288.30 = 1,151.32 : x
2. Step 2: Convert to fraction form
   2,191.56/3,288.30 = 1,151.32/x
3. Step 3: Cross multiply
   2,191.56x = 3,288.30 × 1,151.32
4. Step 4: Simplify right side
   2,191.56x = 3,785,877.34
5. Step 5: Solve for x
   x = 3,785,877.34/2,191.56
6. Step 6: Final answer
   x = 1,727.48