Finding the Fourth Proportional to 2,611.02, 3,917.78 and 1,149.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,611.02 : 3,917.78 = 1,149.99 : x
2. Step 2: Convert to fraction form
   2,611.02/3,917.78 = 1,149.99/x
3. Step 3: Cross multiply
   2,611.02x = 3,917.78 × 1,149.99
4. Step 4: Simplify right side
   2,611.02x = 4,505,407.82
5. Step 5: Solve for x
   x = 4,505,407.82/2,611.02
6. Step 6: Final answer
   x = 1,725.54