Finding the Fourth Proportional to 1,099.99, 1,651.07 and 1,010.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,099.99 : 1,651.07 = 1,010.89 : x
2. Step 2: Convert to fraction form
   1,099.99/1,651.07 = 1,010.89/x
3. Step 3: Cross multiply
   1,099.99x = 1,651.07 × 1,010.89
4. Step 4: Simplify right side
   1,099.99x = 1,669,050.15
5. Step 5: Solve for x
   x = 1,669,050.15/1,099.99
6. Step 6: Final answer
   x = 1,517.33