Finding the Fourth Proportional to 2,116.01, 3,172.88 and 1,075.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,116.01 : 3,172.88 = 1,075.37 : x
2. Step 2: Convert to fraction form
   2,116.01/3,172.88 = 1,075.37/x
3. Step 3: Cross multiply
   2,116.01x = 3,172.88 × 1,075.37
4. Step 4: Simplify right side
   2,116.01x = 3,411,998.72
5. Step 5: Solve for x
   x = 3,411,998.72/2,116.01
6. Step 6: Final answer
   x = 1,612.47