Finding the Fourth Proportional to 1,529.99, 2,111.18 and 866.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,529.99 : 2,111.18 = 866.83 : x
2. Step 2: Convert to fraction form
   1,529.99/2,111.18 = 866.83/x
3. Step 3: Cross multiply
   1,529.99x = 2,111.18 × 866.83
4. Step 4: Simplify right side
   1,529.99x = 1,830,031.05
5. Step 5: Solve for x
   x = 1,830,031.05/1,529.99
6. Step 6: Final answer
   x = 1,196.10