Finding the Fourth Proportional to 3,407.18, 5,111.42 and 1,185.93

Step by Step Solution

1. Step 1: Write the proportion equation
   3,407.18 : 5,111.42 = 1,185.93 : x
2. Step 2: Convert to fraction form
   3,407.18/5,111.42 = 1,185.93/x
3. Step 3: Cross multiply
   3,407.18x = 5,111.42 × 1,185.93
4. Step 4: Simplify right side
   3,407.18x = 6,061,786.32
5. Step 5: Solve for x
   x = 6,061,786.32/3,407.18
6. Step 6: Final answer
   x = 1,779.12