Finding the Fourth Proportional to 1,498.28, 2,068.74 and 909.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,498.28 : 2,068.74 = 909.61 : x
2. Step 2: Convert to fraction form
   1,498.28/2,068.74 = 909.61/x
3. Step 3: Cross multiply
   1,498.28x = 2,068.74 × 909.61
4. Step 4: Simplify right side
   1,498.28x = 1,881,746.59
5. Step 5: Solve for x
   x = 1,881,746.59/1,498.28
6. Step 6: Final answer
   x = 1,255.94