Finding the Fourth Proportional to 2,830.04, 4,246.72 and 1,186.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,830.04 : 4,246.72 = 1,186.45 : x
2. Step 2: Convert to fraction form
   2,830.04/4,246.72 = 1,186.45/x
3. Step 3: Cross multiply
   2,830.04x = 4,246.72 × 1,186.45
4. Step 4: Simplify right side
   2,830.04x = 5,038,520.94
5. Step 5: Solve for x
   x = 5,038,520.94/2,830.04
6. Step 6: Final answer
   x = 1,780.37