Finding the Fourth Proportional to 1,347.76, 1,857.18 and 974.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,347.76 : 1,857.18 = 974.08 : x
2. Step 2: Convert to fraction form
   1,347.76/1,857.18 = 974.08/x
3. Step 3: Cross multiply
   1,347.76x = 1,857.18 × 974.08
4. Step 4: Simplify right side
   1,347.76x = 1,809,041.89
5. Step 5: Solve for x
   x = 1,809,041.89/1,347.76
6. Step 6: Final answer
   x = 1,342.26