Finding the Fourth Proportional to 1,918.98, 2,648.16 and 1,133.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,918.98 : 2,648.16 = 1,133.10 : x
2. Step 2: Convert to fraction form
   1,918.98/2,648.16 = 1,133.10/x
3. Step 3: Cross multiply
   1,918.98x = 2,648.16 × 1,133.10
4. Step 4: Simplify right side
   1,918.98x = 3,000,630.10
5. Step 5: Solve for x
   x = 3,000,630.10/1,918.98
6. Step 6: Final answer
   x = 1,563.66