Finding the Fourth Proportional to 1,333.56, 1,840.14 and 810.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,333.56 : 1,840.14 = 810.12 : x
2. Step 2: Convert to fraction form
   1,333.56/1,840.14 = 810.12/x
3. Step 3: Cross multiply
   1,333.56x = 1,840.14 × 810.12
4. Step 4: Simplify right side
   1,333.56x = 1,490,734.22
5. Step 5: Solve for x
   x = 1,490,734.22/1,333.56
6. Step 6: Final answer
   x = 1,117.86