Finding the Fourth Proportional to 1,156.02, 1,722.41 and 1,081.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,156.02 : 1,722.41 = 1,081.50 : x
2. Step 2: Convert to fraction form
   1,156.02/1,722.41 = 1,081.50/x
3. Step 3: Cross multiply
   1,156.02x = 1,722.41 × 1,081.50
4. Step 4: Simplify right side
   1,156.02x = 1,862,781.01
5. Step 5: Solve for x
   x = 1,862,781.01/1,156.02
6. Step 6: Final answer
   x = 1,611.37