Finding the Fourth Proportional to 2,317.94, 3,477.11 and 931.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,317.94 : 3,477.11 = 931.10 : x
2. Step 2: Convert to fraction form
   2,317.94/3,477.11 = 931.10/x
3. Step 3: Cross multiply
   2,317.94x = 3,477.11 × 931.10
4. Step 4: Simplify right side
   2,317.94x = 3,237,526.78
5. Step 5: Solve for x
   x = 3,237,526.78/2,317.94
6. Step 6: Final answer
   x = 1,396.72