Finding the Fourth Proportional to 2,219.59, 3,062.64 and 1,379.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,219.59 : 3,062.64 = 1,379.62 : x
2. Step 2: Convert to fraction form
   2,219.59/3,062.64 = 1,379.62/x
3. Step 3: Cross multiply
   2,219.59x = 3,062.64 × 1,379.62
4. Step 4: Simplify right side
   2,219.59x = 4,225,279.40
5. Step 5: Solve for x
   x = 4,225,279.40/2,219.59
6. Step 6: Final answer
   x = 1,903.63