Finding the Fourth Proportional to 2,886.42, 4,330.32 and 1,242.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,886.42 : 4,330.32 = 1,242.98 : x
2. Step 2: Convert to fraction form
   2,886.42/4,330.32 = 1,242.98/x
3. Step 3: Cross multiply
   2,886.42x = 4,330.32 × 1,242.98
4. Step 4: Simplify right side
   2,886.42x = 5,382,501.15
5. Step 5: Solve for x
   x = 5,382,501.15/2,886.42
6. Step 6: Final answer
   x = 1,864.77