Finding the Fourth Proportional to 1,357.74, 1,873.83 and 760.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,357.74 : 1,873.83 = 760.45 : x
2. Step 2: Convert to fraction form
   1,357.74/1,873.83 = 760.45/x
3. Step 3: Cross multiply
   1,357.74x = 1,873.83 × 760.45
4. Step 4: Simplify right side
   1,357.74x = 1,424,954.02
5. Step 5: Solve for x
   x = 1,424,954.02/1,357.74
6. Step 6: Final answer
   x = 1,049.50