Finding the Fourth Proportional to 1,521.93, 2,100.67 and 892.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,521.93 : 2,100.67 = 892.55 : x
2. Step 2: Convert to fraction form
   1,521.93/2,100.67 = 892.55/x
3. Step 3: Cross multiply
   1,521.93x = 2,100.67 × 892.55
4. Step 4: Simplify right side
   1,521.93x = 1,874,948.55
5. Step 5: Solve for x
   x = 1,874,948.55/1,521.93
6. Step 6: Final answer
   x = 1,231.95