Finding the Fourth Proportional to 1,338.50, 1,845.11 and 1,150.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,338.50 : 1,845.11 = 1,150.99 : x
2. Step 2: Convert to fraction form
   1,338.50/1,845.11 = 1,150.99/x
3. Step 3: Cross multiply
   1,338.50x = 1,845.11 × 1,150.99
4. Step 4: Simplify right side
   1,338.50x = 2,123,688.18
5. Step 5: Solve for x
   x = 2,123,688.18/1,338.50
6. Step 6: Final answer
   x = 1,586.62