Finding the Fourth Proportional to 2,573.31, 3,859.35 and 1,477.11

Step by Step Solution

1. Step 1: Write the proportion equation
   2,573.31 : 3,859.35 = 1,477.11 : x
2. Step 2: Convert to fraction form
   2,573.31/3,859.35 = 1,477.11/x
3. Step 3: Cross multiply
   2,573.31x = 3,859.35 × 1,477.11
4. Step 4: Simplify right side
   2,573.31x = 5,700,684.48
5. Step 5: Solve for x
   x = 5,700,684.48/2,573.31
6. Step 6: Final answer
   x = 2,215.31