Finding the Fourth Proportional to 1,397.21, 2,085.35 and 1,374.14

Step by Step Solution

1. Step 1: Write the proportion equation
   1,397.21 : 2,085.35 = 1,374.14 : x
2. Step 2: Convert to fraction form
   1,397.21/2,085.35 = 1,374.14/x
3. Step 3: Cross multiply
   1,397.21x = 2,085.35 × 1,374.14
4. Step 4: Simplify right side
   1,397.21x = 2,865,558.52
5. Step 5: Solve for x
   x = 2,865,558.52/1,397.21
6. Step 6: Final answer
   x = 2,050.92