Finding the Fourth Proportional to 1,927.31, 2,889.18 and 694.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,927.31 : 2,889.18 = 694.42 : x
2. Step 2: Convert to fraction form
   1,927.31/2,889.18 = 694.42/x
3. Step 3: Cross multiply
   1,927.31x = 2,889.18 × 694.42
4. Step 4: Simplify right side
   1,927.31x = 2,006,297.15
5. Step 5: Solve for x
   x = 2,006,297.15/1,927.31
6. Step 6: Final answer
   x = 1,040.99