Finding the Fourth Proportional to 1,878.40, 2,591.76 and 1,091.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,878.40 : 2,591.76 = 1,091.98 : x
2. Step 2: Convert to fraction form
   1,878.40/2,591.76 = 1,091.98/x
3. Step 3: Cross multiply
   1,878.40x = 2,591.76 × 1,091.98
4. Step 4: Simplify right side
   1,878.40x = 2,830,150.08
5. Step 5: Solve for x
   x = 2,830,150.08/1,878.40
6. Step 6: Final answer
   x = 1,506.68