Finding the Fourth Proportional to 1,891.89, 2,611.02 and 1,146.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,891.89 : 2,611.02 = 1,146.09 : x
2. Step 2: Convert to fraction form
   1,891.89/2,611.02 = 1,146.09/x
3. Step 3: Cross multiply
   1,891.89x = 2,611.02 × 1,146.09
4. Step 4: Simplify right side
   1,891.89x = 2,992,463.91
5. Step 5: Solve for x
   x = 2,992,463.91/1,891.89
6. Step 6: Final answer
   x = 1,581.73