Finding the Fourth Proportional to 2,214.20, 3,055.72 and 1,330.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,214.20 : 3,055.72 = 1,330.76 : x
2. Step 2: Convert to fraction form
   2,214.20/3,055.72 = 1,330.76/x
3. Step 3: Cross multiply
   2,214.20x = 3,055.72 × 1,330.76
4. Step 4: Simplify right side
   2,214.20x = 4,066,429.95
5. Step 5: Solve for x
   x = 4,066,429.95/2,214.20
6. Step 6: Final answer
   x = 1,836.52