Finding the Fourth Proportional to 2,050.72, 3,075.76 and 751.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,050.72 : 3,075.76 = 751.88 : x
2. Step 2: Convert to fraction form
   2,050.72/3,075.76 = 751.88/x
3. Step 3: Cross multiply
   2,050.72x = 3,075.76 × 751.88
4. Step 4: Simplify right side
   2,050.72x = 2,312,602.43
5. Step 5: Solve for x
   x = 2,312,602.43/2,050.72
6. Step 6: Final answer
   x = 1,127.70