Finding the Fourth Proportional to 1,918.71, 2,648.31 and 1,133.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,918.71 : 2,648.31 = 1,133.01 : x
2. Step 2: Convert to fraction form
   1,918.71/2,648.31 = 1,133.01/x
3. Step 3: Cross multiply
   1,918.71x = 2,648.31 × 1,133.01
4. Step 4: Simplify right side
   1,918.71x = 3,000,561.71
5. Step 5: Solve for x
   x = 3,000,561.71/1,918.71
6. Step 6: Final answer
   x = 1,563.84