Finding the Fourth Proportional to 2,345.56, 3,512.16 and 1,522.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,345.56 : 3,512.16 = 1,522.60 : x
2. Step 2: Convert to fraction form
   2,345.56/3,512.16 = 1,522.60/x
3. Step 3: Cross multiply
   2,345.56x = 3,512.16 × 1,522.60
4. Step 4: Simplify right side
   2,345.56x = 5,347,606.04
5. Step 5: Solve for x
   x = 5,347,606.04/2,345.56
6. Step 6: Final answer
   x = 2,279.89