Finding the Fourth Proportional to 1,394.82, 2,089.29 and 931.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,394.82 : 2,089.29 = 931.10 : x
2. Step 2: Convert to fraction form
   1,394.82/2,089.29 = 931.10/x
3. Step 3: Cross multiply
   1,394.82x = 2,089.29 × 931.10
4. Step 4: Simplify right side
   1,394.82x = 1,945,330.96
5. Step 5: Solve for x
   x = 1,945,330.96/1,394.82
6. Step 6: Final answer
   x = 1,394.68