Finding the Fourth Proportional to 1,369.65, 1,890.11 and 740.17

Step by Step Solution

1. Step 1: Write the proportion equation
   1,369.65 : 1,890.11 = 740.17 : x
2. Step 2: Convert to fraction form
   1,369.65/1,890.11 = 740.17/x
3. Step 3: Cross multiply
   1,369.65x = 1,890.11 × 740.17
4. Step 4: Simplify right side
   1,369.65x = 1,399,002.72
5. Step 5: Solve for x
   x = 1,399,002.72/1,369.65
6. Step 6: Final answer
   x = 1,021.43