Finding the Fourth Proportional to 2,225.30, 3,070.56 and 1,328.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,225.30 : 3,070.56 = 1,328.76 : x
2. Step 2: Convert to fraction form
   2,225.30/3,070.56 = 1,328.76/x
3. Step 3: Cross multiply
   2,225.30x = 3,070.56 × 1,328.76
4. Step 4: Simplify right side
   2,225.30x = 4,080,037.31
5. Step 5: Solve for x
   x = 4,080,037.31/2,225.30
6. Step 6: Final answer
   x = 1,833.48