Finding the Fourth Proportional to 1,868.06, 2,803.31 and 713.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,868.06 : 2,803.31 = 713.81 : x
2. Step 2: Convert to fraction form
   1,868.06/2,803.31 = 713.81/x
3. Step 3: Cross multiply
   1,868.06x = 2,803.31 × 713.81
4. Step 4: Simplify right side
   1,868.06x = 2,001,036.83
5. Step 5: Solve for x
   x = 2,001,036.83/1,868.06
6. Step 6: Final answer
   x = 1,071.18