Finding the Fourth Proportional to 4,981.86, 7,470.72 and 1,861.38

Step by Step Solution

1. Step 1: Write the proportion equation
   4,981.86 : 7,470.72 = 1,861.38 : x
2. Step 2: Convert to fraction form
   4,981.86/7,470.72 = 1,861.38/x
3. Step 3: Cross multiply
   4,981.86x = 7,470.72 × 1,861.38
4. Step 4: Simplify right side
   4,981.86x = 13,905,848.79
5. Step 5: Solve for x
   x = 13,905,848.79/4,981.86
6. Step 6: Final answer
   x = 2,791.30