Finding the Fourth Proportional to 2,061.47, 3,092.65 and 891.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,061.47 : 3,092.65 = 891.50 : x
2. Step 2: Convert to fraction form
   2,061.47/3,092.65 = 891.50/x
3. Step 3: Cross multiply
   2,061.47x = 3,092.65 × 891.50
4. Step 4: Simplify right side
   2,061.47x = 2,757,079.78
5. Step 5: Solve for x
   x = 2,757,079.78/2,061.47
6. Step 6: Final answer
   x = 1,337.43