Finding the Fourth Proportional to 2,075.00, 3,111.48 and 613.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,075.00 : 3,111.48 = 613.76 : x
2. Step 2: Convert to fraction form
   2,075.00/3,111.48 = 613.76/x
3. Step 3: Cross multiply
   2,075.00x = 3,111.48 × 613.76
4. Step 4: Simplify right side
   2,075.00x = 1,909,686.41
5. Step 5: Solve for x
   x = 1,909,686.41/2,075.00
6. Step 6: Final answer
   x = 920.33