Finding the Fourth Proportional to 2,061.27, 3,092.85 and 891.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,061.27 : 3,092.85 = 891.63 : x
2. Step 2: Convert to fraction form
   2,061.27/3,092.85 = 891.63/x
3. Step 3: Cross multiply
   2,061.27x = 3,092.85 × 891.63
4. Step 4: Simplify right side
   2,061.27x = 2,757,677.85
5. Step 5: Solve for x
   x = 2,757,677.85/2,061.27
6. Step 6: Final answer
   x = 1,337.85