Finding the Fourth Proportional to 1,222.68, 1,826.07 and 1,003.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,222.68 : 1,826.07 = 1,003.80 : x
2. Step 2: Convert to fraction form
   1,222.68/1,826.07 = 1,003.80/x
3. Step 3: Cross multiply
   1,222.68x = 1,826.07 × 1,003.80
4. Step 4: Simplify right side
   1,222.68x = 1,833,009.07
5. Step 5: Solve for x
   x = 1,833,009.07/1,222.68
6. Step 6: Final answer
   x = 1,499.17