Finding the Fourth Proportional to 1,691.91, 2,532.56 and 1,076.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,691.91 : 2,532.56 = 1,076.31 : x
2. Step 2: Convert to fraction form
   1,691.91/2,532.56 = 1,076.31/x
3. Step 3: Cross multiply
   1,691.91x = 2,532.56 × 1,076.31
4. Step 4: Simplify right side
   1,691.91x = 2,725,814.27
5. Step 5: Solve for x
   x = 2,725,814.27/1,691.91
6. Step 6: Final answer
   x = 1,611.09