Finding the Fourth Proportional to 1,673.48, 2,309.88 and 1,010.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,673.48 : 2,309.88 = 1,010.38 : x
2. Step 2: Convert to fraction form
   1,673.48/2,309.88 = 1,010.38/x
3. Step 3: Cross multiply
   1,673.48x = 2,309.88 × 1,010.38
4. Step 4: Simplify right side
   1,673.48x = 2,333,858.90
5. Step 5: Solve for x
   x = 2,333,858.90/1,673.48
6. Step 6: Final answer
   x = 1,394.61