Finding the Fourth Proportional to 1,353.39, 1,867.71 and 763.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,353.39 : 1,867.71 = 763.92 : x
2. Step 2: Convert to fraction form
   1,353.39/1,867.71 = 763.92/x
3. Step 3: Cross multiply
   1,353.39x = 1,867.71 × 763.92
4. Step 4: Simplify right side
   1,353.39x = 1,426,781.02
5. Step 5: Solve for x
   x = 1,426,781.02/1,353.39
6. Step 6: Final answer
   x = 1,054.23