Finding the Fourth Proportional to 5,081.86, 7,621.57 and 1,384.11

Step by Step Solution

1. Step 1: Write the proportion equation
   5,081.86 : 7,621.57 = 1,384.11 : x
2. Step 2: Convert to fraction form
   5,081.86/7,621.57 = 1,384.11/x
3. Step 3: Cross multiply
   5,081.86x = 7,621.57 × 1,384.11
4. Step 4: Simplify right side
   5,081.86x = 10,549,110.53
5. Step 5: Solve for x
   x = 10,549,110.53/5,081.86
6. Step 6: Final answer
   x = 2,075.83