Finding the Fourth Proportional to 1,851.94, 2,776.55 and 876.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,851.94 : 2,776.55 = 876.91 : x
2. Step 2: Convert to fraction form
   1,851.94/2,776.55 = 876.91/x
3. Step 3: Cross multiply
   1,851.94x = 2,776.55 × 876.91
4. Step 4: Simplify right side
   1,851.94x = 2,434,784.46
5. Step 5: Solve for x
   x = 2,434,784.46/1,851.94
6. Step 6: Final answer
   x = 1,314.72