Finding the Fourth Proportional to 2,353.86, 3,531.60 and 1,037.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,353.86 : 3,531.60 = 1,037.21 : x
2. Step 2: Convert to fraction form
   2,353.86/3,531.60 = 1,037.21/x
3. Step 3: Cross multiply
   2,353.86x = 3,531.60 × 1,037.21
4. Step 4: Simplify right side
   2,353.86x = 3,662,993.18
5. Step 5: Solve for x
   x = 3,662,993.18/2,353.86
6. Step 6: Final answer
   x = 1,556.16