Finding the Fourth Proportional to 1,900.90, 2,622.94 and 1,155.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,900.90 : 2,622.94 = 1,155.16 : x
2. Step 2: Convert to fraction form
   1,900.90/2,622.94 = 1,155.16/x
3. Step 3: Cross multiply
   1,900.90x = 2,622.94 × 1,155.16
4. Step 4: Simplify right side
   1,900.90x = 3,029,915.37
5. Step 5: Solve for x
   x = 3,029,915.37/1,900.90
6. Step 6: Final answer
   x = 1,593.94