Finding the Fourth Proportional to 2,075.34, 3,113.48 and 614.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,075.34 : 3,113.48 = 614.50 : x
2. Step 2: Convert to fraction form
   2,075.34/3,113.48 = 614.50/x
3. Step 3: Cross multiply
   2,075.34x = 3,113.48 × 614.50
4. Step 4: Simplify right side
   2,075.34x = 1,913,233.46
5. Step 5: Solve for x
   x = 1,913,233.46/2,075.34
6. Step 6: Final answer
   x = 921.89