Finding the Fourth Proportional to 1,498.17, 2,068.56 and 908.90

Step by Step Solution

1. Step 1: Write the proportion equation
   1,498.17 : 2,068.56 = 908.90 : x
2. Step 2: Convert to fraction form
   1,498.17/2,068.56 = 908.90/x
3. Step 3: Cross multiply
   1,498.17x = 2,068.56 × 908.90
4. Step 4: Simplify right side
   1,498.17x = 1,880,103.84
5. Step 5: Solve for x
   x = 1,880,103.84/1,498.17
6. Step 6: Final answer
   x = 1,254.93