Finding the Fourth Proportional to 2,370.72, 3,557.52 and 1,397.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,370.72 : 3,557.52 = 1,397.76 : x
2. Step 2: Convert to fraction form
   2,370.72/3,557.52 = 1,397.76/x
3. Step 3: Cross multiply
   2,370.72x = 3,557.52 × 1,397.76
4. Step 4: Simplify right side
   2,370.72x = 4,972,559.16
5. Step 5: Solve for x
   x = 4,972,559.16/2,370.72
6. Step 6: Final answer
   x = 2,097.49