Finding the Fourth Proportional to 2,290.45, 3,160.27 and 1,345.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,290.45 : 3,160.27 = 1,345.93 : x
2. Step 2: Convert to fraction form
   2,290.45/3,160.27 = 1,345.93/x
3. Step 3: Cross multiply
   2,290.45x = 3,160.27 × 1,345.93
4. Step 4: Simplify right side
   2,290.45x = 4,253,502.20
5. Step 5: Solve for x
   x = 4,253,502.20/2,290.45
6. Step 6: Final answer
   x = 1,857.06