Finding the Fourth Proportional to 2,435.76, 3,656.88 and 1,138.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,435.76 : 3,656.88 = 1,138.14 : x
2. Step 2: Convert to fraction form
   2,435.76/3,656.88 = 1,138.14/x
3. Step 3: Cross multiply
   2,435.76x = 3,656.88 × 1,138.14
4. Step 4: Simplify right side
   2,435.76x = 4,162,041.40
5. Step 5: Solve for x
   x = 4,162,041.40/2,435.76
6. Step 6: Final answer
   x = 1,708.72