Finding the Fourth Proportional to 1,725.81, 2,380.21 and 1,061.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,725.81 : 2,380.21 = 1,061.47 : x
2. Step 2: Convert to fraction form
   1,725.81/2,380.21 = 1,061.47/x
3. Step 3: Cross multiply
   1,725.81x = 2,380.21 × 1,061.47
4. Step 4: Simplify right side
   1,725.81x = 2,526,521.51
5. Step 5: Solve for x
   x = 2,526,521.51/1,725.81
6. Step 6: Final answer
   x = 1,463.96