Finding the Fourth Proportional to 2,342.21, 3,231.56 and 1,457.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,342.21 : 3,231.56 = 1,457.69 : x
2. Step 2: Convert to fraction form
   2,342.21/3,231.56 = 1,457.69/x
3. Step 3: Cross multiply
   2,342.21x = 3,231.56 × 1,457.69
4. Step 4: Simplify right side
   2,342.21x = 4,710,600.18
5. Step 5: Solve for x
   x = 4,710,600.18/2,342.21
6. Step 6: Final answer
   x = 2,011.18