Finding the Fourth Proportional to 1,981.34, 2,973.62 and 1,397.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,981.34 : 2,973.62 = 1,397.50 : x
2. Step 2: Convert to fraction form
   1,981.34/2,973.62 = 1,397.50/x
3. Step 3: Cross multiply
   1,981.34x = 2,973.62 × 1,397.50
4. Step 4: Simplify right side
   1,981.34x = 4,155,633.95
5. Step 5: Solve for x
   x = 4,155,633.95/1,981.34
6. Step 6: Final answer
   x = 2,097.39