Finding the Fourth Proportional to 2,110.02, 3,164.52 and 648.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,110.02 : 3,164.52 = 648.78 : x
2. Step 2: Convert to fraction form
   2,110.02/3,164.52 = 648.78/x
3. Step 3: Cross multiply
   2,110.02x = 3,164.52 × 648.78
4. Step 4: Simplify right side
   2,110.02x = 2,053,077.29
5. Step 5: Solve for x
   x = 2,053,077.29/2,110.02
6. Step 6: Final answer
   x = 973.01