Finding the Fourth Proportional to 1,371.30, 2,061.50 and 1,269.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,371.30 : 2,061.50 = 1,269.84 : x
2. Step 2: Convert to fraction form
   1,371.30/2,061.50 = 1,269.84/x
3. Step 3: Cross multiply
   1,371.30x = 2,061.50 × 1,269.84
4. Step 4: Simplify right side
   1,371.30x = 2,617,768.81
5. Step 5: Solve for x
   x = 2,617,768.81/1,371.30
6. Step 6: Final answer
   x = 1,908.97