Finding the Fourth Proportional to 1,902.88, 2,626.32 and 1,314.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,902.88 : 2,626.32 = 1,314.16 : x
2. Step 2: Convert to fraction form
   1,902.88/2,626.32 = 1,314.16/x
3. Step 3: Cross multiply
   1,902.88x = 2,626.32 × 1,314.16
4. Step 4: Simplify right side
   1,902.88x = 3,451,404.69
5. Step 5: Solve for x
   x = 3,451,404.69/1,902.88
6. Step 6: Final answer
   x = 1,813.78