Finding the Fourth Proportional to 2,378.04, 3,281.88 and 1,370.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,378.04 : 3,281.88 = 1,370.05 : x
2. Step 2: Convert to fraction form
   2,378.04/3,281.88 = 1,370.05/x
3. Step 3: Cross multiply
   2,378.04x = 3,281.88 × 1,370.05
4. Step 4: Simplify right side
   2,378.04x = 4,496,339.69
5. Step 5: Solve for x
   x = 4,496,339.69/2,378.04
6. Step 6: Final answer
   x = 1,890.78