Finding the Fourth Proportional to 2,807.93, 4,210.86 and 933.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,807.93 : 4,210.86 = 933.48 : x
2. Step 2: Convert to fraction form
   2,807.93/4,210.86 = 933.48/x
3. Step 3: Cross multiply
   2,807.93x = 4,210.86 × 933.48
4. Step 4: Simplify right side
   2,807.93x = 3,930,753.59
5. Step 5: Solve for x
   x = 3,930,753.59/2,807.93
6. Step 6: Final answer
   x = 1,399.88