Finding the Fourth Proportional to 1,592.53, 2,388.77 and 866.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,592.53 : 2,388.77 = 866.72 : x
2. Step 2: Convert to fraction form
   1,592.53/2,388.77 = 866.72/x
3. Step 3: Cross multiply
   1,592.53x = 2,388.77 × 866.72
4. Step 4: Simplify right side
   1,592.53x = 2,070,404.50
5. Step 5: Solve for x
   x = 2,070,404.50/1,592.53
6. Step 6: Final answer
   x = 1,300.07