Finding the Fourth Proportional to 2,118.03, 2,922.89 and 1,186.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,118.03 : 2,922.89 = 1,186.53 : x
2. Step 2: Convert to fraction form
   2,118.03/2,922.89 = 1,186.53/x
3. Step 3: Cross multiply
   2,118.03x = 2,922.89 × 1,186.53
4. Step 4: Simplify right side
   2,118.03x = 3,468,090.74
5. Step 5: Solve for x
   x = 3,468,090.74/2,118.03
6. Step 6: Final answer
   x = 1,637.41