Finding the Fourth Proportional to 3,604.57, 4,973.95 and 2,091.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,604.57 : 4,973.95 = 2,091.89 : x
2. Step 2: Convert to fraction form
   3,604.57/4,973.95 = 2,091.89/x
3. Step 3: Cross multiply
   3,604.57x = 4,973.95 × 2,091.89
4. Step 4: Simplify right side
   3,604.57x = 10,404,971.32
5. Step 5: Solve for x
   x = 10,404,971.32/3,604.57
6. Step 6: Final answer
   x = 2,886.61