Finding the Fourth Proportional to 1,435.53, 1,980.41 and 837.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,435.53 : 1,980.41 = 837.98 : x
2. Step 2: Convert to fraction form
   1,435.53/1,980.41 = 837.98/x
3. Step 3: Cross multiply
   1,435.53x = 1,980.41 × 837.98
4. Step 4: Simplify right side
   1,435.53x = 1,659,529.88
5. Step 5: Solve for x
   x = 1,659,529.88/1,435.53
6. Step 6: Final answer
   x = 1,156.04