Finding the Fourth Proportional to 1,003.59, 1,384.94 and 610.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,003.59 : 1,384.94 = 610.34 : x
2. Step 2: Convert to fraction form
   1,003.59/1,384.94 = 610.34/x
3. Step 3: Cross multiply
   1,003.59x = 1,384.94 × 610.34
4. Step 4: Simplify right side
   1,003.59x = 845,278.88
5. Step 5: Solve for x
   x = 845,278.88/1,003.59
6. Step 6: Final answer
   x = 842.26