Finding the Fourth Proportional to 2,188.32, 3,019.90 and 1,303.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,188.32 : 3,019.90 = 1,303.96 : x
2. Step 2: Convert to fraction form
   2,188.32/3,019.90 = 1,303.96/x
3. Step 3: Cross multiply
   2,188.32x = 3,019.90 × 1,303.96
4. Step 4: Simplify right side
   2,188.32x = 3,937,828.80
5. Step 5: Solve for x
   x = 3,937,828.80/2,188.32
6. Step 6: Final answer
   x = 1,799.48