Finding the Fourth Proportional to 2,219.34, 3,059.73 and 1,590.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,219.34 : 3,059.73 = 1,590.78 : x
2. Step 2: Convert to fraction form
   2,219.34/3,059.73 = 1,590.78/x
3. Step 3: Cross multiply
   2,219.34x = 3,059.73 × 1,590.78
4. Step 4: Simplify right side
   2,219.34x = 4,867,357.29
5. Step 5: Solve for x
   x = 4,867,357.29/2,219.34
6. Step 6: Final answer
   x = 2,193.16