Finding the Fourth Proportional to 1,906.07, 2,630.56 and 1,159.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,906.07 : 2,630.56 = 1,159.86 : x
2. Step 2: Convert to fraction form
   1,906.07/2,630.56 = 1,159.86/x
3. Step 3: Cross multiply
   1,906.07x = 2,630.56 × 1,159.86
4. Step 4: Simplify right side
   1,906.07x = 3,051,081.32
5. Step 5: Solve for x
   x = 3,051,081.32/1,906.07
6. Step 6: Final answer
   x = 1,600.72