Finding the Fourth Proportional to 3,707.01, 5,557.89 and 1,856.81

Step by Step Solution

1. Step 1: Write the proportion equation
   3,707.01 : 5,557.89 = 1,856.81 : x
2. Step 2: Convert to fraction form
   3,707.01/5,557.89 = 1,856.81/x
3. Step 3: Cross multiply
   3,707.01x = 5,557.89 × 1,856.81
4. Step 4: Simplify right side
   3,707.01x = 10,319,917.94
5. Step 5: Solve for x
   x = 10,319,917.94/3,707.01
6. Step 6: Final answer
   x = 2,783.89