Finding the Fourth Proportional to 3,715.50, 5,571.72 and 1,342.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,715.50 : 5,571.72 = 1,342.89 : x
2. Step 2: Convert to fraction form
   3,715.50/5,571.72 = 1,342.89/x
3. Step 3: Cross multiply
   3,715.50x = 5,571.72 × 1,342.89
4. Step 4: Simplify right side
   3,715.50x = 7,482,207.07
5. Step 5: Solve for x
   x = 7,482,207.07/3,715.50
6. Step 6: Final answer
   x = 2,013.78