Finding the Fourth Proportional to 1,721.57, 2,374.70 and 1,501.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,721.57 : 2,374.70 = 1,501.05 : x
2. Step 2: Convert to fraction form
   1,721.57/2,374.70 = 1,501.05/x
3. Step 3: Cross multiply
   1,721.57x = 2,374.70 × 1,501.05
4. Step 4: Simplify right side
   1,721.57x = 3,564,543.44
5. Step 5: Solve for x
   x = 3,564,543.44/1,721.57
6. Step 6: Final answer
   x = 2,070.52