Finding the Fourth Proportional to 1,562.06, 2,149.89 and 1,338.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,562.06 : 2,149.89 = 1,338.50 : x
2. Step 2: Convert to fraction form
   1,562.06/2,149.89 = 1,338.50/x
3. Step 3: Cross multiply
   1,562.06x = 2,149.89 × 1,338.50
4. Step 4: Simplify right side
   1,562.06x = 2,877,627.77
5. Step 5: Solve for x
   x = 2,877,627.77/1,562.06
6. Step 6: Final answer
   x = 1,842.20