Finding the Fourth Proportional to 1,666.97, 2,300.35 and 1,003.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,666.97 : 2,300.35 = 1,003.89 : x
2. Step 2: Convert to fraction form
   1,666.97/2,300.35 = 1,003.89/x
3. Step 3: Cross multiply
   1,666.97x = 2,300.35 × 1,003.89
4. Step 4: Simplify right side
   1,666.97x = 2,309,293.34
5. Step 5: Solve for x
   x = 2,309,293.34/1,666.97
6. Step 6: Final answer
   x = 1,385.33