Finding the Fourth Proportional to 1,288.41, 1,930.86 and 593.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,288.41 : 1,930.86 = 593.55 : x
2. Step 2: Convert to fraction form
   1,288.41/1,930.86 = 593.55/x
3. Step 3: Cross multiply
   1,288.41x = 1,930.86 × 593.55
4. Step 4: Simplify right side
   1,288.41x = 1,146,052.30
5. Step 5: Solve for x
   x = 1,146,052.30/1,288.41
6. Step 6: Final answer
   x = 889.51