Finding the Fourth Proportional to 1,031.83, 1,423.41 and 611.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,031.83 : 1,423.41 = 611.98 : x
2. Step 2: Convert to fraction form
   1,031.83/1,423.41 = 611.98/x
3. Step 3: Cross multiply
   1,031.83x = 1,423.41 × 611.98
4. Step 4: Simplify right side
   1,031.83x = 871,100.61
5. Step 5: Solve for x
   x = 871,100.61/1,031.83
6. Step 6: Final answer
   x = 844.23