Finding the Fourth Proportional to 3,684.96, 5,085.32 and 2,112.93

Step by Step Solution

1. Step 1: Write the proportion equation
   3,684.96 : 5,085.32 = 2,112.93 : x
2. Step 2: Convert to fraction form
   3,684.96/5,085.32 = 2,112.93/x
3. Step 3: Cross multiply
   3,684.96x = 5,085.32 × 2,112.93
4. Step 4: Simplify right side
   3,684.96x = 10,744,914.62
5. Step 5: Solve for x
   x = 10,744,914.62/3,684.96
6. Step 6: Final answer
   x = 2,915.88