Finding the Fourth Proportional to 1,014.70, 1,401.06 and 891.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,014.70 : 1,401.06 = 891.82 : x
2. Step 2: Convert to fraction form
   1,014.70/1,401.06 = 891.82/x
3. Step 3: Cross multiply
   1,014.70x = 1,401.06 × 891.82
4. Step 4: Simplify right side
   1,014.70x = 1,249,493.33
5. Step 5: Solve for x
   x = 1,249,493.33/1,014.70
6. Step 6: Final answer
   x = 1,231.39