Finding the Fourth Proportional to 2,300.57, 3,174.92 and 1,356.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,300.57 : 3,174.92 = 1,356.91 : x
2. Step 2: Convert to fraction form
   2,300.57/3,174.92 = 1,356.91/x
3. Step 3: Cross multiply
   2,300.57x = 3,174.92 × 1,356.91
4. Step 4: Simplify right side
   2,300.57x = 4,308,077.88
5. Step 5: Solve for x
   x = 4,308,077.88/2,300.57
6. Step 6: Final answer
   x = 1,872.61