Finding the Fourth Proportional to 2,453.31, 3,677.89 and 1,065.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,453.31 : 3,677.89 = 1,065.60 : x
2. Step 2: Convert to fraction form
   2,453.31/3,677.89 = 1,065.60/x
3. Step 3: Cross multiply
   2,453.31x = 3,677.89 × 1,065.60
4. Step 4: Simplify right side
   2,453.31x = 3,919,156.92
5. Step 5: Solve for x
   x = 3,919,156.92/2,453.31
6. Step 6: Final answer
   x = 1,597.50