Finding the Fourth Proportional to 1,628.53, 2,245.89 and 1,068.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,628.53 : 2,245.89 = 1,068.78 : x
2. Step 2: Convert to fraction form
   1,628.53/2,245.89 = 1,068.78/x
3. Step 3: Cross multiply
   1,628.53x = 2,245.89 × 1,068.78
4. Step 4: Simplify right side
   1,628.53x = 2,400,362.31
5. Step 5: Solve for x
   x = 2,400,362.31/1,628.53
6. Step 6: Final answer
   x = 1,473.94