Finding the Fourth Proportional to 2,953.55, 4,075.70 and 1,929.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,953.55 : 4,075.70 = 1,929.80 : x
2. Step 2: Convert to fraction form
   2,953.55/4,075.70 = 1,929.80/x
3. Step 3: Cross multiply
   2,953.55x = 4,075.70 × 1,929.80
4. Step 4: Simplify right side
   2,953.55x = 7,865,255.83
5. Step 5: Solve for x
   x = 7,865,255.83/2,953.55
6. Step 6: Final answer
   x = 2,662.99