Finding the Fourth Proportional to 3,937.32, 5,904.72 and 1,856.07

Step by Step Solution

1. Step 1: Write the proportion equation
   3,937.32 : 5,904.72 = 1,856.07 : x
2. Step 2: Convert to fraction form
   3,937.32/5,904.72 = 1,856.07/x
3. Step 3: Cross multiply
   3,937.32x = 5,904.72 × 1,856.07
4. Step 4: Simplify right side
   3,937.32x = 10,959,573.65
5. Step 5: Solve for x
   x = 10,959,573.65/3,937.32
6. Step 6: Final answer
   x = 2,783.51