Finding the Fourth Proportional to 1,681.02, 2,319.33 and 1,017.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,681.02 : 2,319.33 = 1,017.50 : x
2. Step 2: Convert to fraction form
   1,681.02/2,319.33 = 1,017.50/x
3. Step 3: Cross multiply
   1,681.02x = 2,319.33 × 1,017.50
4. Step 4: Simplify right side
   1,681.02x = 2,359,910.49
5. Step 5: Solve for x
   x = 2,359,910.49/1,681.02
6. Step 6: Final answer
   x = 1,403.86