Finding the Fourth Proportional to 1,574.53, 2,172.79 and 875.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,574.53 : 2,172.79 = 875.89 : x
2. Step 2: Convert to fraction form
   1,574.53/2,172.79 = 875.89/x
3. Step 3: Cross multiply
   1,574.53x = 2,172.79 × 875.89
4. Step 4: Simplify right side
   1,574.53x = 1,903,125.03
5. Step 5: Solve for x
   x = 1,903,125.03/1,574.53
6. Step 6: Final answer
   x = 1,208.69