Finding the Fourth Proportional to 2,288.38, 3,156.90 and 1,343.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,288.38 : 3,156.90 = 1,343.86 : x
2. Step 2: Convert to fraction form
   2,288.38/3,156.90 = 1,343.86/x
3. Step 3: Cross multiply
   2,288.38x = 3,156.90 × 1,343.86
4. Step 4: Simplify right side
   2,288.38x = 4,242,437.85
5. Step 5: Solve for x
   x = 4,242,437.85/2,288.38
6. Step 6: Final answer
   x = 1,853.91