Finding the Fourth Proportional to 2,075.34, 3,114.15 and 921.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,075.34 : 3,114.15 = 921.06 : x
2. Step 2: Convert to fraction form
   2,075.34/3,114.15 = 921.06/x
3. Step 3: Cross multiply
   2,075.34x = 3,114.15 × 921.06
4. Step 4: Simplify right side
   2,075.34x = 2,868,319.00
5. Step 5: Solve for x
   x = 2,868,319.00/2,075.34
6. Step 6: Final answer
   x = 1,382.10