Finding the Fourth Proportional to 1,529.98, 2,111.32 and 866.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,529.98 : 2,111.32 = 866.86 : x
2. Step 2: Convert to fraction form
   1,529.98/2,111.32 = 866.86/x
3. Step 3: Cross multiply
   1,529.98x = 2,111.32 × 866.86
4. Step 4: Simplify right side
   1,529.98x = 1,830,218.86
5. Step 5: Solve for x
   x = 1,830,218.86/1,529.98
6. Step 6: Final answer
   x = 1,196.24