Finding the Fourth Proportional to 2,451.94, 3,677.88 and 891.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,451.94 : 3,677.88 = 891.88 : x
2. Step 2: Convert to fraction form
   2,451.94/3,677.88 = 891.88/x
3. Step 3: Cross multiply
   2,451.94x = 3,677.88 × 891.88
4. Step 4: Simplify right side
   2,451.94x = 3,280,227.61
5. Step 5: Solve for x
   x = 3,280,227.61/2,451.94
6. Step 6: Final answer
   x = 1,337.81