Finding the Fourth Proportional to 2,106.48, 3,156.96 and 1,008.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,106.48 : 3,156.96 = 1,008.60 : x
2. Step 2: Convert to fraction form
   2,106.48/3,156.96 = 1,008.60/x
3. Step 3: Cross multiply
   2,106.48x = 3,156.96 × 1,008.60
4. Step 4: Simplify right side
   2,106.48x = 3,184,109.86
5. Step 5: Solve for x
   x = 3,184,109.86/2,106.48
6. Step 6: Final answer
   x = 1,511.58