Finding the Fourth Proportional to 2,477.98, 3,717.20 and 897.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,477.98 : 3,717.20 = 897.09 : x
2. Step 2: Convert to fraction form
   2,477.98/3,717.20 = 897.09/x
3. Step 3: Cross multiply
   2,477.98x = 3,717.20 × 897.09
4. Step 4: Simplify right side
   2,477.98x = 3,334,658.46
5. Step 5: Solve for x
   x = 3,334,658.46/2,477.98
6. Step 6: Final answer
   x = 1,345.72