Finding the Fourth Proportional to 4,807.15, 7,210.72 and 1,886.83

Step by Step Solution

1. Step 1: Write the proportion equation
   4,807.15 : 7,210.72 = 1,886.83 : x
2. Step 2: Convert to fraction form
   4,807.15/7,210.72 = 1,886.83/x
3. Step 3: Cross multiply
   4,807.15x = 7,210.72 × 1,886.83
4. Step 4: Simplify right side
   4,807.15x = 13,605,402.82
5. Step 5: Solve for x
   x = 13,605,402.82/4,807.15
6. Step 6: Final answer
   x = 2,830.24