Finding the Fourth Proportional to 1,369.04, 1,890.84 and 1,250.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,369.04 : 1,890.84 = 1,250.72 : x
2. Step 2: Convert to fraction form
   1,369.04/1,890.84 = 1,250.72/x
3. Step 3: Cross multiply
   1,369.04x = 1,890.84 × 1,250.72
4. Step 4: Simplify right side
   1,369.04x = 2,364,911.40
5. Step 5: Solve for x
   x = 2,364,911.40/1,369.04
6. Step 6: Final answer
   x = 1,727.42