Finding the Fourth Proportional to 1,521.72, 2,100.06 and 892.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,521.72 : 2,100.06 = 892.68 : x
2. Step 2: Convert to fraction form
   1,521.72/2,100.06 = 892.68/x
3. Step 3: Cross multiply
   1,521.72x = 2,100.06 × 892.68
4. Step 4: Simplify right side
   1,521.72x = 1,874,681.56
5. Step 5: Solve for x
   x = 1,874,681.56/1,521.72
6. Step 6: Final answer
   x = 1,231.95