Finding the Fourth Proportional to 2,435.64, 3,654.90 and 897.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,435.64 : 3,654.90 = 897.72 : x
2. Step 2: Convert to fraction form
   2,435.64/3,654.90 = 897.72/x
3. Step 3: Cross multiply
   2,435.64x = 3,654.90 × 897.72
4. Step 4: Simplify right side
   2,435.64x = 3,281,076.83
5. Step 5: Solve for x
   x = 3,281,076.83/2,435.64
6. Step 6: Final answer
   x = 1,347.11