Finding the Fourth Proportional to 1,019.34, 1,404.97 and 981.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,019.34 : 1,404.97 = 981.07 : x
2. Step 2: Convert to fraction form
   1,019.34/1,404.97 = 981.07/x
3. Step 3: Cross multiply
   1,019.34x = 1,404.97 × 981.07
4. Step 4: Simplify right side
   1,019.34x = 1,378,367.95
5. Step 5: Solve for x
   x = 1,378,367.95/1,019.34
6. Step 6: Final answer
   x = 1,352.22