Finding the Fourth Proportional to 1,893.06, 2,612.88 and 1,107.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,893.06 : 2,612.88 = 1,107.18 : x
2. Step 2: Convert to fraction form
   1,893.06/2,612.88 = 1,107.18/x
3. Step 3: Cross multiply
   1,893.06x = 2,612.88 × 1,107.18
4. Step 4: Simplify right side
   1,893.06x = 2,892,928.48
5. Step 5: Solve for x
   x = 2,892,928.48/1,893.06
6. Step 6: Final answer
   x = 1,528.18