Finding the Fourth Proportional to 1,437.30, 1,983.32 and 877.90

Step by Step Solution

1. Step 1: Write the proportion equation
   1,437.30 : 1,983.32 = 877.90 : x
2. Step 2: Convert to fraction form
   1,437.30/1,983.32 = 877.90/x
3. Step 3: Cross multiply
   1,437.30x = 1,983.32 × 877.90
4. Step 4: Simplify right side
   1,437.30x = 1,741,156.63
5. Step 5: Solve for x
   x = 1,741,156.63/1,437.30
6. Step 6: Final answer
   x = 1,211.41