Finding the Fourth Proportional to 3,715.76, 5,571.48 and 1,406

Step by Step Solution

1. Step 1: Write the proportion equation
   3,715.76 : 5,571.48 = 1,406 : x
2. Step 2: Convert to fraction form
   3,715.76/5,571.48 = 1,406/x
3. Step 3: Cross multiply
   3,715.76x = 5,571.48 × 1,406
4. Step 4: Simplify right side
   3,715.76x = 7,833,500.88
5. Step 5: Solve for x
   x = 7,833,500.88/3,715.76
6. Step 6: Final answer
   x = 2,108.18