Finding the Fourth Proportional to 2,124.98, 3,187.59 and 892.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,124.98 : 3,187.59 = 892.45 : x
2. Step 2: Convert to fraction form
   2,124.98/3,187.59 = 892.45/x
3. Step 3: Cross multiply
   2,124.98x = 3,187.59 × 892.45
4. Step 4: Simplify right side
   2,124.98x = 2,844,748.76
5. Step 5: Solve for x
   x = 2,844,748.76/2,124.98
6. Step 6: Final answer
   x = 1,338.72