Finding the Fourth Proportional to 2,176.60, 3,265.86 and 1,080.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,176.60 : 3,265.86 = 1,080.37 : x
2. Step 2: Convert to fraction form
   2,176.60/3,265.86 = 1,080.37/x
3. Step 3: Cross multiply
   2,176.60x = 3,265.86 × 1,080.37
4. Step 4: Simplify right side
   2,176.60x = 3,528,337.17
5. Step 5: Solve for x
   x = 3,528,337.17/2,176.60
6. Step 6: Final answer
   x = 1,621.03