Finding the Fourth Proportional to 1,184.52, 1,634.49 and 687.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,184.52 : 1,634.49 = 687.30 : x
2. Step 2: Convert to fraction form
   1,184.52/1,634.49 = 687.30/x
3. Step 3: Cross multiply
   1,184.52x = 1,634.49 × 687.30
4. Step 4: Simplify right side
   1,184.52x = 1,123,384.98
5. Step 5: Solve for x
   x = 1,123,384.98/1,184.52
6. Step 6: Final answer
   x = 948.39