Finding the Fourth Proportional to 1,343.76, 1,854.38 and 846.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,343.76 : 1,854.38 = 846.72 : x
2. Step 2: Convert to fraction form
   1,343.76/1,854.38 = 846.72/x
3. Step 3: Cross multiply
   1,343.76x = 1,854.38 × 846.72
4. Step 4: Simplify right side
   1,343.76x = 1,570,140.63
5. Step 5: Solve for x
   x = 1,570,140.63/1,343.76
6. Step 6: Final answer
   x = 1,168.47