Finding the Fourth Proportional to 2,045.75, 3,068.76 and 891.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,045.75 : 3,068.76 = 891.50 : x
2. Step 2: Convert to fraction form
   2,045.75/3,068.76 = 891.50/x
3. Step 3: Cross multiply
   2,045.75x = 3,068.76 × 891.50
4. Step 4: Simplify right side
   2,045.75x = 2,735,799.54
5. Step 5: Solve for x
   x = 2,735,799.54/2,045.75
6. Step 6: Final answer
   x = 1,337.31