Finding the Fourth Proportional to 1,357.52, 1,873.43 and 768.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,357.52 : 1,873.43 = 768.06 : x
2. Step 2: Convert to fraction form
   1,357.52/1,873.43 = 768.06/x
3. Step 3: Cross multiply
   1,357.52x = 1,873.43 × 768.06
4. Step 4: Simplify right side
   1,357.52x = 1,438,902.81
5. Step 5: Solve for x
   x = 1,438,902.81/1,357.52
6. Step 6: Final answer
   x = 1,059.95