Finding the Fourth Proportional to 1,457.34, 2,010.78 and 926.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,457.34 : 2,010.78 = 926.34 : x
2. Step 2: Convert to fraction form
   1,457.34/2,010.78 = 926.34/x
3. Step 3: Cross multiply
   1,457.34x = 2,010.78 × 926.34
4. Step 4: Simplify right side
   1,457.34x = 1,862,665.95
5. Step 5: Solve for x
   x = 1,862,665.95/1,457.34
6. Step 6: Final answer
   x = 1,278.13