Finding the Fourth Proportional to 2,301.31, 3,176.55 and 1,357.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,301.31 : 3,176.55 = 1,357.09 : x
2. Step 2: Convert to fraction form
   2,301.31/3,176.55 = 1,357.09/x
3. Step 3: Cross multiply
   2,301.31x = 3,176.55 × 1,357.09
4. Step 4: Simplify right side
   2,301.31x = 4,310,856.30
5. Step 5: Solve for x
   x = 4,310,856.30/2,301.31
6. Step 6: Final answer
   x = 1,873.22