Finding the Fourth Proportional to 1,641.22, 2,264.78 and 933.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,641.22 : 2,264.78 = 933.03 : x
2. Step 2: Convert to fraction form
   1,641.22/2,264.78 = 933.03/x
3. Step 3: Cross multiply
   1,641.22x = 2,264.78 × 933.03
4. Step 4: Simplify right side
   1,641.22x = 2,113,110.02
5. Step 5: Solve for x
   x = 2,113,110.02/1,641.22
6. Step 6: Final answer
   x = 1,287.53