Finding the Fourth Proportional to 1,184.58, 1,634.79 and 687.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,184.58 : 1,634.79 = 687.04 : x
2. Step 2: Convert to fraction form
   1,184.58/1,634.79 = 687.04/x
3. Step 3: Cross multiply
   1,184.58x = 1,634.79 × 687.04
4. Step 4: Simplify right side
   1,184.58x = 1,123,162.03
5. Step 5: Solve for x
   x = 1,123,162.03/1,184.58
6. Step 6: Final answer
   x = 948.15