Finding the Fourth Proportional to 1,353.69, 1,867.98 and 764.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,353.69 : 1,867.98 = 764.22 : x
2. Step 2: Convert to fraction form
   1,353.69/1,867.98 = 764.22/x
3. Step 3: Cross multiply
   1,353.69x = 1,867.98 × 764.22
4. Step 4: Simplify right side
   1,353.69x = 1,427,547.68
5. Step 5: Solve for x
   x = 1,427,547.68/1,353.69
6. Step 6: Final answer
   x = 1,054.56