Finding the Fourth Proportional to 1,181.30, 1,630.17 and 683.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,181.30 : 1,630.17 = 683.93 : x
2. Step 2: Convert to fraction form
   1,181.30/1,630.17 = 683.93/x
3. Step 3: Cross multiply
   1,181.30x = 1,630.17 × 683.93
4. Step 4: Simplify right side
   1,181.30x = 1,114,922.17
5. Step 5: Solve for x
   x = 1,114,922.17/1,181.30
6. Step 6: Final answer
   x = 943.81