Finding the Fourth Proportional to 3,820.83, 5,731.43 and 1,223.79

Step by Step Solution

1. Step 1: Write the proportion equation
   3,820.83 : 5,731.43 = 1,223.79 : x
2. Step 2: Convert to fraction form
   3,820.83/5,731.43 = 1,223.79/x
3. Step 3: Cross multiply
   3,820.83x = 5,731.43 × 1,223.79
4. Step 4: Simplify right side
   3,820.83x = 7,014,060.60
5. Step 5: Solve for x
   x = 7,014,060.60/3,820.83
6. Step 6: Final answer
   x = 1,835.74