Finding the Fourth Proportional to 1,147.34, 1,583.33 and 623.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,147.34 : 1,583.33 = 623.37 : x
2. Step 2: Convert to fraction form
   1,147.34/1,583.33 = 623.37/x
3. Step 3: Cross multiply
   1,147.34x = 1,583.33 × 623.37
4. Step 4: Simplify right side
   1,147.34x = 986,997.31
5. Step 5: Solve for x
   x = 986,997.31/1,147.34
6. Step 6: Final answer
   x = 860.25