Finding the Fourth Proportional to 2,355.55, 3,534.03 and 712.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,355.55 : 3,534.03 = 712.15 : x
2. Step 2: Convert to fraction form
   2,355.55/3,534.03 = 712.15/x
3. Step 3: Cross multiply
   2,355.55x = 3,534.03 × 712.15
4. Step 4: Simplify right side
   2,355.55x = 2,516,759.46
5. Step 5: Solve for x
   x = 2,516,759.46/2,355.55
6. Step 6: Final answer
   x = 1,068.44