Finding the Fourth Proportional to 1,521.86, 2,100.20 and 892.87

Step by Step Solution

1. Step 1: Write the proportion equation
   1,521.86 : 2,100.20 = 892.87 : x
2. Step 2: Convert to fraction form
   1,521.86/2,100.20 = 892.87/x
3. Step 3: Cross multiply
   1,521.86x = 2,100.20 × 892.87
4. Step 4: Simplify right side
   1,521.86x = 1,875,215.21
5. Step 5: Solve for x
   x = 1,875,215.21/1,521.86
6. Step 6: Final answer
   x = 1,232.18