Finding the Fourth Proportional to 2,088.52, 3,131.19 and 1,266.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,088.52 : 3,131.19 = 1,266.58 : x
2. Step 2: Convert to fraction form
   2,088.52/3,131.19 = 1,266.58/x
3. Step 3: Cross multiply
   2,088.52x = 3,131.19 × 1,266.58
4. Step 4: Simplify right side
   2,088.52x = 3,965,902.63
5. Step 5: Solve for x
   x = 3,965,902.63/2,088.52
6. Step 6: Final answer
   x = 1,898.91