Finding the Fourth Proportional to 2,156.66, 3,236.54 and 1,061.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,156.66 : 3,236.54 = 1,061.34 : x
2. Step 2: Convert to fraction form
   2,156.66/3,236.54 = 1,061.34/x
3. Step 3: Cross multiply
   2,156.66x = 3,236.54 × 1,061.34
4. Step 4: Simplify right side
   2,156.66x = 3,435,064.06
5. Step 5: Solve for x
   x = 3,435,064.06/2,156.66
6. Step 6: Final answer
   x = 1,592.77