Finding the Fourth Proportional to 2,747.16, 4,117.83 and 897.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,747.16 : 4,117.83 = 897.78 : x
2. Step 2: Convert to fraction form
   2,747.16/4,117.83 = 897.78/x
3. Step 3: Cross multiply
   2,747.16x = 4,117.83 × 897.78
4. Step 4: Simplify right side
   2,747.16x = 3,696,905.42
5. Step 5: Solve for x
   x = 3,696,905.42/2,747.16
6. Step 6: Final answer
   x = 1,345.72