Finding the Fourth Proportional to 3,693.64, 5,097.53 and 2,100.79

Step by Step Solution

1. Step 1: Write the proportion equation
   3,693.64 : 5,097.53 = 2,100.79 : x
2. Step 2: Convert to fraction form
   3,693.64/5,097.53 = 2,100.79/x
3. Step 3: Cross multiply
   3,693.64x = 5,097.53 × 2,100.79
4. Step 4: Simplify right side
   3,693.64x = 10,708,816.80
5. Step 5: Solve for x
   x = 10,708,816.80/3,693.64
6. Step 6: Final answer
   x = 2,899.26