Finding the Fourth Proportional to 1,808.52, 2,495.72 and 980.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,808.52 : 2,495.72 = 980.52 : x
2. Step 2: Convert to fraction form
   1,808.52/2,495.72 = 980.52/x
3. Step 3: Cross multiply
   1,808.52x = 2,495.72 × 980.52
4. Step 4: Simplify right side
   1,808.52x = 2,447,103.37
5. Step 5: Solve for x
   x = 2,447,103.37/1,808.52
6. Step 6: Final answer
   x = 1,353.10