Finding the Fourth Proportional to 2,886.02, 4,328.66 and 938.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,886.02 : 4,328.66 = 938.07 : x
2. Step 2: Convert to fraction form
   2,886.02/4,328.66 = 938.07/x
3. Step 3: Cross multiply
   2,886.02x = 4,328.66 × 938.07
4. Step 4: Simplify right side
   2,886.02x = 4,060,581.40
5. Step 5: Solve for x
   x = 4,060,581.40/2,886.02
6. Step 6: Final answer
   x = 1,406.99