Finding the Fourth Proportional to 1,873.86, 2,811.83 and 703.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,873.86 : 2,811.83 = 703.81 : x
2. Step 2: Convert to fraction form
   1,873.86/2,811.83 = 703.81/x
3. Step 3: Cross multiply
   1,873.86x = 2,811.83 × 703.81
4. Step 4: Simplify right side
   1,873.86x = 1,978,994.07
5. Step 5: Solve for x
   x = 1,978,994.07/1,873.86
6. Step 6: Final answer
   x = 1,056.11