Finding the Fourth Proportional to 1,116.50, 1,675.16 and 1,026.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,116.50 : 1,675.16 = 1,026.59 : x
2. Step 2: Convert to fraction form
   1,116.50/1,675.16 = 1,026.59/x
3. Step 3: Cross multiply
   1,116.50x = 1,675.16 × 1,026.59
4. Step 4: Simplify right side
   1,116.50x = 1,719,697.37
5. Step 5: Solve for x
   x = 1,719,697.37/1,116.50
6. Step 6: Final answer
   x = 1,540.26