Finding the Fourth Proportional to 2,061.37, 3,092.26 and 891.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,061.37 : 3,092.26 = 891.80 : x
2. Step 2: Convert to fraction form
   2,061.37/3,092.26 = 891.80/x
3. Step 3: Cross multiply
   2,061.37x = 3,092.26 × 891.80
4. Step 4: Simplify right side
   2,061.37x = 2,757,677.47
5. Step 5: Solve for x
   x = 2,757,677.47/2,061.37
6. Step 6: Final answer
   x = 1,337.79