Finding the Fourth Proportional to 1,743.77, 2,615.82 and 573.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,743.77 : 2,615.82 = 573.30 : x
2. Step 2: Convert to fraction form
   1,743.77/2,615.82 = 573.30/x
3. Step 3: Cross multiply
   1,743.77x = 2,615.82 × 573.30
4. Step 4: Simplify right side
   1,743.77x = 1,499,637.96
5. Step 5: Solve for x
   x = 1,499,637.96/1,743.77
6. Step 6: Final answer
   x = 860.00