Finding the Fourth Proportional to 1,353.68, 1,867.52 and 910.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,353.68 : 1,867.52 = 910.82 : x
2. Step 2: Convert to fraction form
   1,353.68/1,867.52 = 910.82/x
3. Step 3: Cross multiply
   1,353.68x = 1,867.52 × 910.82
4. Step 4: Simplify right side
   1,353.68x = 1,700,961.81
5. Step 5: Solve for x
   x = 1,700,961.81/1,353.68
6. Step 6: Final answer
   x = 1,256.54