Finding the Fourth Proportional to 2,213.89, 3,055.02 and 1,330.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,213.89 : 3,055.02 = 1,330.18 : x
2. Step 2: Convert to fraction form
   2,213.89/3,055.02 = 1,330.18/x
3. Step 3: Cross multiply
   2,213.89x = 3,055.02 × 1,330.18
4. Step 4: Simplify right side
   2,213.89x = 4,063,726.50
5. Step 5: Solve for x
   x = 4,063,726.50/2,213.89
6. Step 6: Final answer
   x = 1,835.56