Finding the Fourth Proportional to 1,368.74, 1,888.98 and 1,119.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,368.74 : 1,888.98 = 1,119.53 : x
2. Step 2: Convert to fraction form
   1,368.74/1,888.98 = 1,119.53/x
3. Step 3: Cross multiply
   1,368.74x = 1,888.98 × 1,119.53
4. Step 4: Simplify right side
   1,368.74x = 2,114,769.78
5. Step 5: Solve for x
   x = 2,114,769.78/1,368.74
6. Step 6: Final answer
   x = 1,545.05