Finding the Fourth Proportional to 2,218.44, 3,061.86 and 1,379.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,218.44 : 3,061.86 = 1,379.52 : x
2. Step 2: Convert to fraction form
   2,218.44/3,061.86 = 1,379.52/x
3. Step 3: Cross multiply
   2,218.44x = 3,061.86 × 1,379.52
4. Step 4: Simplify right side
   2,218.44x = 4,223,897.11
5. Step 5: Solve for x
   x = 4,223,897.11/2,218.44
6. Step 6: Final answer
   x = 1,903.99