Finding the Fourth Proportional to 1,693.42, 2,540.16 and 719.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,693.42 : 2,540.16 = 719.34 : x
2. Step 2: Convert to fraction form
   1,693.42/2,540.16 = 719.34/x
3. Step 3: Cross multiply
   1,693.42x = 2,540.16 × 719.34
4. Step 4: Simplify right side
   1,693.42x = 1,827,238.69
5. Step 5: Solve for x
   x = 1,827,238.69/1,693.42
6. Step 6: Final answer
   x = 1,079.02