Finding the Fourth Proportional to 2,623.02, 3,932.10 and 890.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,623.02 : 3,932.10 = 890.43 : x
2. Step 2: Convert to fraction form
   2,623.02/3,932.10 = 890.43/x
3. Step 3: Cross multiply
   2,623.02x = 3,932.10 × 890.43
4. Step 4: Simplify right side
   2,623.02x = 3,501,259.80
5. Step 5: Solve for x
   x = 3,501,259.80/2,623.02
6. Step 6: Final answer
   x = 1,334.82