Finding the Fourth Proportional to 2,903.55, 4,355.27 and 712.19

Step by Step Solution

1. Step 1: Write the proportion equation
   2,903.55 : 4,355.27 = 712.19 : x
2. Step 2: Convert to fraction form
   2,903.55/4,355.27 = 712.19/x
3. Step 3: Cross multiply
   2,903.55x = 4,355.27 × 712.19
4. Step 4: Simplify right side
   2,903.55x = 3,101,789.74
5. Step 5: Solve for x
   x = 3,101,789.74/2,903.55
6. Step 6: Final answer
   x = 1,068.28