Finding the Fourth Proportional to 2,492.81, 3,739.04 and 1,031.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,492.81 : 3,739.04 = 1,031.91 : x
2. Step 2: Convert to fraction form
   2,492.81/3,739.04 = 1,031.91/x
3. Step 3: Cross multiply
   2,492.81x = 3,739.04 × 1,031.91
4. Step 4: Simplify right side
   2,492.81x = 3,858,347.61
5. Step 5: Solve for x
   x = 3,858,347.61/2,492.81
6. Step 6: Final answer
   x = 1,547.79