Finding the Fourth Proportional to 1,018.84, 1,406.70 and 834.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,018.84 : 1,406.70 = 834.52 : x
2. Step 2: Convert to fraction form
   1,018.84/1,406.70 = 834.52/x
3. Step 3: Cross multiply
   1,018.84x = 1,406.70 × 834.52
4. Step 4: Simplify right side
   1,018.84x = 1,173,919.28
5. Step 5: Solve for x
   x = 1,173,919.28/1,018.84
6. Step 6: Final answer
   x = 1,152.21