Finding the Fourth Proportional to 1,624.61, 2,240.81 and 1,570.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,624.61 : 2,240.81 = 1,570.37 : x
2. Step 2: Convert to fraction form
   1,624.61/2,240.81 = 1,570.37/x
3. Step 3: Cross multiply
   1,624.61x = 2,240.81 × 1,570.37
4. Step 4: Simplify right side
   1,624.61x = 3,518,881.74
5. Step 5: Solve for x
   x = 3,518,881.74/1,624.61
6. Step 6: Final answer
   x = 2,165.99