Finding the Fourth Proportional to 1,513.33, 2,266.72 and 926.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,513.33 : 2,266.72 = 926.57 : x
2. Step 2: Convert to fraction form
   1,513.33/2,266.72 = 926.57/x
3. Step 3: Cross multiply
   1,513.33x = 2,266.72 × 926.57
4. Step 4: Simplify right side
   1,513.33x = 2,100,278.10
5. Step 5: Solve for x
   x = 2,100,278.10/1,513.33
6. Step 6: Final answer
   x = 1,387.85