Finding the Fourth Proportional to 1,991.32, 2,988.15 and 895.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,991.32 : 2,988.15 = 895.72 : x
2. Step 2: Convert to fraction form
   1,991.32/2,988.15 = 895.72/x
3. Step 3: Cross multiply
   1,991.32x = 2,988.15 × 895.72
4. Step 4: Simplify right side
   1,991.32x = 2,676,545.72
5. Step 5: Solve for x
   x = 2,676,545.72/1,991.32
6. Step 6: Final answer
   x = 1,344.11