Finding the Fourth Proportional to 2,111.80, 3,165.06 and 1,457.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111.80 : 3,165.06 = 1,457.32 : x
2. Step 2: Convert to fraction form
   2,111.80/3,165.06 = 1,457.32/x
3. Step 3: Cross multiply
   2,111.80x = 3,165.06 × 1,457.32
4. Step 4: Simplify right side
   2,111.80x = 4,612,505.24
5. Step 5: Solve for x
   x = 4,612,505.24/2,111.80
6. Step 6: Final answer
   x = 2,184.16