Finding the Fourth Proportional to 1,648.37, 2,274.80 and 1,010.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,648.37 : 2,274.80 = 1,010.43 : x
2. Step 2: Convert to fraction form
   1,648.37/2,274.80 = 1,010.43/x
3. Step 3: Cross multiply
   1,648.37x = 2,274.80 × 1,010.43
4. Step 4: Simplify right side
   1,648.37x = 2,298,526.16
5. Step 5: Solve for x
   x = 2,298,526.16/1,648.37
6. Step 6: Final answer
   x = 1,394.42