Finding the Fourth Proportional to 1,407.34, 2,099.06 and 1,223.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,407.34 : 2,099.06 = 1,223.27 : x
2. Step 2: Convert to fraction form
   1,407.34/2,099.06 = 1,223.27/x
3. Step 3: Cross multiply
   1,407.34x = 2,099.06 × 1,223.27
4. Step 4: Simplify right side
   1,407.34x = 2,567,709.53
5. Step 5: Solve for x
   x = 2,567,709.53/1,407.34
6. Step 6: Final answer
   x = 1,824.51