Finding the Fourth Proportional to 1,878.02, 2,591.76 and 1,081.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,878.02 : 2,591.76 = 1,081.46 : x
2. Step 2: Convert to fraction form
   1,878.02/2,591.76 = 1,081.46/x
3. Step 3: Cross multiply
   1,878.02x = 2,591.76 × 1,081.46
4. Step 4: Simplify right side
   1,878.02x = 2,802,893.95
5. Step 5: Solve for x
   x = 2,802,893.95/1,878.02
6. Step 6: Final answer
   x = 1,492.47