Finding the Fourth Proportional to 2,071.09, 3,105.51 and 837.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,071.09 : 3,105.51 = 837.88 : x
2. Step 2: Convert to fraction form
   2,071.09/3,105.51 = 837.88/x
3. Step 3: Cross multiply
   2,071.09x = 3,105.51 × 837.88
4. Step 4: Simplify right side
   2,071.09x = 2,602,044.72
5. Step 5: Solve for x
   x = 2,602,044.72/2,071.09
6. Step 6: Final answer
   x = 1,256.36