Finding the Fourth Proportional to 1,853.31, 2,777.53 and 1,031.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,853.31 : 2,777.53 = 1,031.16 : x
2. Step 2: Convert to fraction form
   1,853.31/2,777.53 = 1,031.16/x
3. Step 3: Cross multiply
   1,853.31x = 2,777.53 × 1,031.16
4. Step 4: Simplify right side
   1,853.31x = 2,864,077.83
5. Step 5: Solve for x
   x = 2,864,077.83/1,853.31
6. Step 6: Final answer
   x = 1,545.39