Finding the Fourth Proportional to 1,665.51, 2,297.68 and 1,001.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,665.51 : 2,297.68 = 1,001.99 : x
2. Step 2: Convert to fraction form
   1,665.51/2,297.68 = 1,001.99/x
3. Step 3: Cross multiply
   1,665.51x = 2,297.68 × 1,001.99
4. Step 4: Simplify right side
   1,665.51x = 2,302,238.39
5. Step 5: Solve for x
   x = 2,302,238.39/1,665.51
6. Step 6: Final answer
   x = 1,382.30