Finding the Fourth Proportional to 2,116.53, 2,920.82 and 1,185.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,116.53 : 2,920.82 = 1,185.03 : x
2. Step 2: Convert to fraction form
   2,116.53/2,920.82 = 1,185.03/x
3. Step 3: Cross multiply
   2,116.53x = 2,920.82 × 1,185.03
4. Step 4: Simplify right side
   2,116.53x = 3,461,259.32
5. Step 5: Solve for x
   x = 3,461,259.32/2,116.53
6. Step 6: Final answer
   x = 1,635.35