Finding the Fourth Proportional to 1,184.31, 1,634.46 and 680.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,184.31 : 1,634.46 = 680.34 : x
2. Step 2: Convert to fraction form
   1,184.31/1,634.46 = 680.34/x
3. Step 3: Cross multiply
   1,184.31x = 1,634.46 × 680.34
4. Step 4: Simplify right side
   1,184.31x = 1,111,988.52
5. Step 5: Solve for x
   x = 1,111,988.52/1,184.31
6. Step 6: Final answer
   x = 938.93