Finding the Fourth Proportional to 2,131.51, 2,938.91 and 1,777.95

Step by Step Solution

1. Step 1: Write the proportion equation
   2,131.51 : 2,938.91 = 1,777.95 : x
2. Step 2: Convert to fraction form
   2,131.51/2,938.91 = 1,777.95/x
3. Step 3: Cross multiply
   2,131.51x = 2,938.91 × 1,777.95
4. Step 4: Simplify right side
   2,131.51x = 5,225,220.34
5. Step 5: Solve for x
   x = 5,225,220.34/2,131.51
6. Step 6: Final answer
   x = 2,451.42