Finding the Fourth Proportional to 2,151.48, 3,225.58 and 1,111.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,151.48 : 3,225.58 = 1,111.02 : x
2. Step 2: Convert to fraction form
   2,151.48/3,225.58 = 1,111.02/x
3. Step 3: Cross multiply
   2,151.48x = 3,225.58 × 1,111.02
4. Step 4: Simplify right side
   2,151.48x = 3,583,683.89
5. Step 5: Solve for x
   x = 3,583,683.89/2,151.48
6. Step 6: Final answer
   x = 1,665.68