Finding the Fourth Proportional to 1,499.49, 2,069.28 and 910.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499.49 : 2,069.28 = 910.22 : x
2. Step 2: Convert to fraction form
   1,499.49/2,069.28 = 910.22/x
3. Step 3: Cross multiply
   1,499.49x = 2,069.28 × 910.22
4. Step 4: Simplify right side
   1,499.49x = 1,883,489.70
5. Step 5: Solve for x
   x = 1,883,489.70/1,499.49
6. Step 6: Final answer
   x = 1,256.09