Finding the Fourth Proportional to 1,955.31, 2,930.58 and 1,031.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,955.31 : 2,930.58 = 1,031.31 : x
2. Step 2: Convert to fraction form
   1,955.31/2,930.58 = 1,031.31/x
3. Step 3: Cross multiply
   1,955.31x = 2,930.58 × 1,031.31
4. Step 4: Simplify right side
   1,955.31x = 3,022,328.22
5. Step 5: Solve for x
   x = 3,022,328.22/1,955.31
6. Step 6: Final answer
   x = 1,545.70