Finding the Fourth Proportional to 1,611.60, 2,403.52 and 1,456.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,611.60 : 2,403.52 = 1,456.08 : x
2. Step 2: Convert to fraction form
   1,611.60/2,403.52 = 1,456.08/x
3. Step 3: Cross multiply
   1,611.60x = 2,403.52 × 1,456.08
4. Step 4: Simplify right side
   1,611.60x = 3,499,717.40
5. Step 5: Solve for x
   x = 3,499,717.40/1,611.60
6. Step 6: Final answer
   x = 2,171.58