Finding the Fourth Proportional to 2,070.30, 3,104.55 and 837.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,070.30 : 3,104.55 = 837.30 : x
2. Step 2: Convert to fraction form
   2,070.30/3,104.55 = 837.30/x
3. Step 3: Cross multiply
   2,070.30x = 3,104.55 × 837.30
4. Step 4: Simplify right side
   2,070.30x = 2,599,439.72
5. Step 5: Solve for x
   x = 2,599,439.72/2,070.30
6. Step 6: Final answer
   x = 1,255.59