Finding the Fourth Proportional to 1,381.68, 2,073.33 and 1,271.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,381.68 : 2,073.33 = 1,271.52 : x
2. Step 2: Convert to fraction form
   1,381.68/2,073.33 = 1,271.52/x
3. Step 3: Cross multiply
   1,381.68x = 2,073.33 × 1,271.52
4. Step 4: Simplify right side
   1,381.68x = 2,636,280.56
5. Step 5: Solve for x
   x = 2,636,280.56/1,381.68
6. Step 6: Final answer
   x = 1,908.03