Finding the Fourth Proportional to 1,338.53, 1,998.68 and 1,181.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,338.53 : 1,998.68 = 1,181.04 : x
2. Step 2: Convert to fraction form
   1,338.53/1,998.68 = 1,181.04/x
3. Step 3: Cross multiply
   1,338.53x = 1,998.68 × 1,181.04
4. Step 4: Simplify right side
   1,338.53x = 2,360,520.72
5. Step 5: Solve for x
   x = 2,360,520.72/1,338.53
6. Step 6: Final answer
   x = 1,763.52