Finding the Fourth Proportional to 2,232.30, 3,080.54 and 1,288.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,232.30 : 3,080.54 = 1,288.10 : x
2. Step 2: Convert to fraction form
   2,232.30/3,080.54 = 1,288.10/x
3. Step 3: Cross multiply
   2,232.30x = 3,080.54 × 1,288.10
4. Step 4: Simplify right side
   2,232.30x = 3,968,054.50
5. Step 5: Solve for x
   x = 3,968,054.50/2,232.30
6. Step 6: Final answer
   x = 1,777.56