Finding the Fourth Proportional to 1,353.95, 1,868.46 and 764.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,353.95 : 1,868.46 = 764.48 : x
2. Step 2: Convert to fraction form
   1,353.95/1,868.46 = 764.48/x
3. Step 3: Cross multiply
   1,353.95x = 1,868.46 × 764.48
4. Step 4: Simplify right side
   1,353.95x = 1,428,400.30
5. Step 5: Solve for x
   x = 1,428,400.30/1,353.95
6. Step 6: Final answer
   x = 1,054.99