Finding the Fourth Proportional to 1,904.54, 2,628.25 and 1,065.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,904.54 : 2,628.25 = 1,065.31 : x
2. Step 2: Convert to fraction form
   1,904.54/2,628.25 = 1,065.31/x
3. Step 3: Cross multiply
   1,904.54x = 2,628.25 × 1,065.31
4. Step 4: Simplify right side
   1,904.54x = 2,799,891.77
5. Step 5: Solve for x
   x = 2,799,891.77/1,904.54
6. Step 6: Final answer
   x = 1,470.12