Finding the Fourth Proportional to 2,290.66, 3,160.98 and 1,295.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,290.66 : 3,160.98 = 1,295.98 : x
2. Step 2: Convert to fraction form
   2,290.66/3,160.98 = 1,295.98/x
3. Step 3: Cross multiply
   2,290.66x = 3,160.98 × 1,295.98
4. Step 4: Simplify right side
   2,290.66x = 4,096,566.86
5. Step 5: Solve for x
   x = 4,096,566.86/2,290.66
6. Step 6: Final answer
   x = 1,788.38