Finding the Fourth Proportional to 1,121.82, 1,684.17 and 1,061.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,121.82 : 1,684.17 = 1,061.34 : x
2. Step 2: Convert to fraction form
   1,121.82/1,684.17 = 1,061.34/x
3. Step 3: Cross multiply
   1,121.82x = 1,684.17 × 1,061.34
4. Step 4: Simplify right side
   1,121.82x = 1,787,476.99
5. Step 5: Solve for x
   x = 1,787,476.99/1,121.82
6. Step 6: Final answer
   x = 1,593.37