Finding the Fourth Proportional to 1,529.58, 2,111.19 and 866.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,529.58 : 2,111.19 = 866.82 : x
2. Step 2: Convert to fraction form
   1,529.58/2,111.19 = 866.82/x
3. Step 3: Cross multiply
   1,529.58x = 2,111.19 × 866.82
4. Step 4: Simplify right side
   1,529.58x = 1,830,021.72
5. Step 5: Solve for x
   x = 1,830,021.72/1,529.58
6. Step 6: Final answer
   x = 1,196.42