Finding the Fourth Proportional to 1,085.09, 1,625.83 and 976.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,085.09 : 1,625.83 = 976.01 : x
2. Step 2: Convert to fraction form
   1,085.09/1,625.83 = 976.01/x
3. Step 3: Cross multiply
   1,085.09x = 1,625.83 × 976.01
4. Step 4: Simplify right side
   1,085.09x = 1,586,815.77
5. Step 5: Solve for x
   x = 1,586,815.77/1,085.09
6. Step 6: Final answer
   x = 1,462.39