Finding the Fourth Proportional to 2,292.96, 3,164.28 and 1,245.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,292.96 : 3,164.28 = 1,245.02 : x
2. Step 2: Convert to fraction form
   2,292.96/3,164.28 = 1,245.02/x
3. Step 3: Cross multiply
   2,292.96x = 3,164.28 × 1,245.02
4. Step 4: Simplify right side
   2,292.96x = 3,939,591.89
5. Step 5: Solve for x
   x = 3,939,591.89/2,292.96
6. Step 6: Final answer
   x = 1,718.12