Finding the Fourth Proportional to 2,216.04, 3,319.86 and 1,242.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,216.04 : 3,319.86 = 1,242.84 : x
2. Step 2: Convert to fraction form
   2,216.04/3,319.86 = 1,242.84/x
3. Step 3: Cross multiply
   2,216.04x = 3,319.86 × 1,242.84
4. Step 4: Simplify right side
   2,216.04x = 4,126,054.80
5. Step 5: Solve for x
   x = 4,126,054.80/2,216.04
6. Step 6: Final answer
   x = 1,861.90