Finding the Fourth Proportional to 1,146.96, 1,582.82 and 623.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,146.96 : 1,582.82 = 623.00 : x
2. Step 2: Convert to fraction form
   1,146.96/1,582.82 = 623.00/x
3. Step 3: Cross multiply
   1,146.96x = 1,582.82 × 623.00
4. Step 4: Simplify right side
   1,146.96x = 986,085.83
5. Step 5: Solve for x
   x = 986,085.83/1,146.96
6. Step 6: Final answer
   x = 859.74