Finding the Fourth Proportional to 2,510.51, 3,763.05 and 1,121.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,510.51 : 3,763.05 = 1,121.93 : x
2. Step 2: Convert to fraction form
   2,510.51/3,763.05 = 1,121.93/x
3. Step 3: Cross multiply
   2,510.51x = 3,763.05 × 1,121.93
4. Step 4: Simplify right side
   2,510.51x = 4,221,878.69
5. Step 5: Solve for x
   x = 4,221,878.69/2,510.51
6. Step 6: Final answer
   x = 1,681.68