Finding the Fourth Proportional to 3,510.77, 5,262.47 and 1,401.57

Step by Step Solution

1. Step 1: Write the proportion equation
   3,510.77 : 5,262.47 = 1,401.57 : x
2. Step 2: Convert to fraction form
   3,510.77/5,262.47 = 1,401.57/x
3. Step 3: Cross multiply
   3,510.77x = 5,262.47 × 1,401.57
4. Step 4: Simplify right side
   3,510.77x = 7,375,716.57
5. Step 5: Solve for x
   x = 7,375,716.57/3,510.77
6. Step 6: Final answer
   x = 2,100.88