Finding the Fourth Proportional to 2,610.51, 3,914.55 and 1,223.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,610.51 : 3,914.55 = 1,223.39 : x
2. Step 2: Convert to fraction form
   2,610.51/3,914.55 = 1,223.39/x
3. Step 3: Cross multiply
   2,610.51x = 3,914.55 × 1,223.39
4. Step 4: Simplify right side
   2,610.51x = 4,789,001.75
5. Step 5: Solve for x
   x = 4,789,001.75/2,610.51
6. Step 6: Final answer
   x = 1,834.51