Finding the Fourth Proportional to 2,452.72, 3,677.93 and 891.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,452.72 : 3,677.93 = 891.63 : x
2. Step 2: Convert to fraction form
   2,452.72/3,677.93 = 891.63/x
3. Step 3: Cross multiply
   2,452.72x = 3,677.93 × 891.63
4. Step 4: Simplify right side
   2,452.72x = 3,279,329.88
5. Step 5: Solve for x
   x = 3,279,329.88/2,452.72
6. Step 6: Final answer
   x = 1,337.02