Finding the Fourth Proportional to 2,221.02, 3,063.78 and 1,381.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,221.02 : 3,063.78 = 1,381.86 : x
2. Step 2: Convert to fraction form
   2,221.02/3,063.78 = 1,381.86/x
3. Step 3: Cross multiply
   2,221.02x = 3,063.78 × 1,381.86
4. Step 4: Simplify right side
   2,221.02x = 4,233,715.03
5. Step 5: Solve for x
   x = 4,233,715.03/2,221.02
6. Step 6: Final answer
   x = 1,906.20