Finding the Fourth Proportional to 2,087.55, 3,127.38 and 1,623.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,087.55 : 3,127.38 = 1,623.07 : x
2. Step 2: Convert to fraction form
   2,087.55/3,127.38 = 1,623.07/x
3. Step 3: Cross multiply
   2,087.55x = 3,127.38 × 1,623.07
4. Step 4: Simplify right side
   2,087.55x = 5,075,964.48
5. Step 5: Solve for x
   x = 5,075,964.48/2,087.55
6. Step 6: Final answer
   x = 2,431.55