Finding the Fourth Proportional to 1,499.89, 2,069.49 and 910.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499.89 : 2,069.49 = 910.32 : x
2. Step 2: Convert to fraction form
   1,499.89/2,069.49 = 910.32/x
3. Step 3: Cross multiply
   1,499.89x = 2,069.49 × 910.32
4. Step 4: Simplify right side
   1,499.89x = 1,883,887.79
5. Step 5: Solve for x
   x = 1,883,887.79/1,499.89
6. Step 6: Final answer
   x = 1,256.02