Finding the Fourth Proportional to 1,085.99, 1,499.52 and 1,003.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,085.99 : 1,499.52 = 1,003.06 : x
2. Step 2: Convert to fraction form
   1,085.99/1,499.52 = 1,003.06/x
3. Step 3: Cross multiply
   1,085.99x = 1,499.52 × 1,003.06
4. Step 4: Simplify right side
   1,085.99x = 1,504,108.53
5. Step 5: Solve for x
   x = 1,504,108.53/1,085.99
6. Step 6: Final answer
   x = 1,385.01