Finding the Fourth Proportional to 2,388.48, 3,296.64 and 1,560

Step by Step Solution

1. Step 1: Write the proportion equation
   2,388.48 : 3,296.64 = 1,560 : x
2. Step 2: Convert to fraction form
   2,388.48/3,296.64 = 1,560/x
3. Step 3: Cross multiply
   2,388.48x = 3,296.64 × 1,560
4. Step 4: Simplify right side
   2,388.48x = 5,142,758.40
5. Step 5: Solve for x
   x = 5,142,758.40/2,388.48
6. Step 6: Final answer
   x = 2,153.15