Finding the Fourth Proportional to 2,108.61, 2,906.69 and 1,518.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,108.61 : 2,906.69 = 1,518.93 : x
2. Step 2: Convert to fraction form
   2,108.61/2,906.69 = 1,518.93/x
3. Step 3: Cross multiply
   2,108.61x = 2,906.69 × 1,518.93
4. Step 4: Simplify right side
   2,108.61x = 4,415,051.05
5. Step 5: Solve for x
   x = 4,415,051.05/2,108.61
6. Step 6: Final answer
   x = 2,093.82