Finding the Fourth Proportional to 1,900.12, 2,623.37 and 1,303.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,900.12 : 2,623.37 = 1,303.61 : x
2. Step 2: Convert to fraction form
   1,900.12/2,623.37 = 1,303.61/x
3. Step 3: Cross multiply
   1,900.12x = 2,623.37 × 1,303.61
4. Step 4: Simplify right side
   1,900.12x = 3,419,851.41
5. Step 5: Solve for x
   x = 3,419,851.41/1,900.12
6. Step 6: Final answer
   x = 1,799.81