Finding the Fourth Proportional to 1,361.06, 1,878.61 and 837.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,361.06 : 1,878.61 = 837.53 : x
2. Step 2: Convert to fraction form
   1,361.06/1,878.61 = 837.53/x
3. Step 3: Cross multiply
   1,361.06x = 1,878.61 × 837.53
4. Step 4: Simplify right side
   1,361.06x = 1,573,392.23
5. Step 5: Solve for x
   x = 1,573,392.23/1,361.06
6. Step 6: Final answer
   x = 1,156.01