Finding the Fourth Proportional to 2,111.10, 2,913.19 and 1,365.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111.10 : 2,913.19 = 1,365.45 : x
2. Step 2: Convert to fraction form
   2,111.10/2,913.19 = 1,365.45/x
3. Step 3: Cross multiply
   2,111.10x = 2,913.19 × 1,365.45
4. Step 4: Simplify right side
   2,111.10x = 3,977,815.29
5. Step 5: Solve for x
   x = 3,977,815.29/2,111.10
6. Step 6: Final answer
   x = 1,884.24