Finding the Fourth Proportional to 1,721.14, 2,376.15 and 1,133.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,721.14 : 2,376.15 = 1,133.38 : x
2. Step 2: Convert to fraction form
   1,721.14/2,376.15 = 1,133.38/x
3. Step 3: Cross multiply
   1,721.14x = 2,376.15 × 1,133.38
4. Step 4: Simplify right side
   1,721.14x = 2,693,080.89
5. Step 5: Solve for x
   x = 2,693,080.89/1,721.14
6. Step 6: Final answer
   x = 1,564.71