Finding the Fourth Proportional to 1,673.80, 2,309.52 and 1,010.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,673.80 : 2,309.52 = 1,010.69 : x
2. Step 2: Convert to fraction form
   1,673.80/2,309.52 = 1,010.69/x
3. Step 3: Cross multiply
   1,673.80x = 2,309.52 × 1,010.69
4. Step 4: Simplify right side
   1,673.80x = 2,334,208.77
5. Step 5: Solve for x
   x = 2,334,208.77/1,673.80
6. Step 6: Final answer
   x = 1,394.56