Finding the Fourth Proportional to 1,904.90, 2,628.82 and 1,065.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,904.90 : 2,628.82 = 1,065.58 : x
2. Step 2: Convert to fraction form
   1,904.90/2,628.82 = 1,065.58/x
3. Step 3: Cross multiply
   1,904.90x = 2,628.82 × 1,065.58
4. Step 4: Simplify right side
   1,904.90x = 2,801,218.02
5. Step 5: Solve for x
   x = 2,801,218.02/1,904.90
6. Step 6: Final answer
   x = 1,470.53