Finding the Fourth Proportional to 1,906.60, 2,630.42 and 1,160.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,906.60 : 2,630.42 = 1,160.32 : x
2. Step 2: Convert to fraction form
   1,906.60/2,630.42 = 1,160.32/x
3. Step 3: Cross multiply
   1,906.60x = 2,630.42 × 1,160.32
4. Step 4: Simplify right side
   1,906.60x = 3,052,128.93
5. Step 5: Solve for x
   x = 3,052,128.93/1,906.60
6. Step 6: Final answer
   x = 1,600.82