Finding the Fourth Proportional to 3,370.95, 5,056.61 and 1,031.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,370.95 : 5,056.61 = 1,031.31 : x
2. Step 2: Convert to fraction form
   3,370.95/5,056.61 = 1,031.31/x
3. Step 3: Cross multiply
   3,370.95x = 5,056.61 × 1,031.31
4. Step 4: Simplify right side
   3,370.95x = 5,214,946.26
5. Step 5: Solve for x
   x = 5,214,946.26/3,370.95
6. Step 6: Final answer
   x = 1,547.02