Finding the Fourth Proportional to 2,917.22, 4,373.39 and 1,187.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,917.22 : 4,373.39 = 1,187.06 : x
2. Step 2: Convert to fraction form
   2,917.22/4,373.39 = 1,187.06/x
3. Step 3: Cross multiply
   2,917.22x = 4,373.39 × 1,187.06
4. Step 4: Simplify right side
   2,917.22x = 5,191,457.43
5. Step 5: Solve for x
   x = 5,191,457.43/2,917.22
6. Step 6: Final answer
   x = 1,779.59