Finding the Fourth Proportional to 1,343.54, 1,854.72 and 1,012.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,343.54 : 1,854.72 = 1,012.10 : x
2. Step 2: Convert to fraction form
   1,343.54/1,854.72 = 1,012.10/x
3. Step 3: Cross multiply
   1,343.54x = 1,854.72 × 1,012.10
4. Step 4: Simplify right side
   1,343.54x = 1,877,162.11
5. Step 5: Solve for x
   x = 1,877,162.11/1,343.54
6. Step 6: Final answer
   x = 1,397.18