Finding the Fourth Proportional to 2,319.31, 3,477.31 and 1,086.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,319.31 : 3,477.31 = 1,086.04 : x
2. Step 2: Convert to fraction form
   2,319.31/3,477.31 = 1,086.04/x
3. Step 3: Cross multiply
   2,319.31x = 3,477.31 × 1,086.04
4. Step 4: Simplify right side
   2,319.31x = 3,776,492.32
5. Step 5: Solve for x
   x = 3,776,492.32/2,319.31
6. Step 6: Final answer
   x = 1,628.29