Finding the Fourth Proportional to 1,003.45, 1,384.77 and 583.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,003.45 : 1,384.77 = 583.83 : x
2. Step 2: Convert to fraction form
   1,003.45/1,384.77 = 583.83/x
3. Step 3: Cross multiply
   1,003.45x = 1,384.77 × 583.83
4. Step 4: Simplify right side
   1,003.45x = 808,470.27
5. Step 5: Solve for x
   x = 808,470.27/1,003.45
6. Step 6: Final answer
   x = 805.69