Finding the Fourth Proportional to 1,426.52, 2,141.90 and 877.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426.52 : 2,141.90 = 877.12 : x
2. Step 2: Convert to fraction form
   1,426.52/2,141.90 = 877.12/x
3. Step 3: Cross multiply
   1,426.52x = 2,141.90 × 877.12
4. Step 4: Simplify right side
   1,426.52x = 1,878,703.33
5. Step 5: Solve for x
   x = 1,878,703.33/1,426.52
6. Step 6: Final answer
   x = 1,316.98