Finding the Fourth Proportional to 2,346.45, 3,521.42 and 1,113.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,346.45 : 3,521.42 = 1,113.87 : x
2. Step 2: Convert to fraction form
   2,346.45/3,521.42 = 1,113.87/x
3. Step 3: Cross multiply
   2,346.45x = 3,521.42 × 1,113.87
4. Step 4: Simplify right side
   2,346.45x = 3,922,404.10
5. Step 5: Solve for x
   x = 3,922,404.10/2,346.45
6. Step 6: Final answer
   x = 1,671.63