Finding the Fourth Proportional to 3,870.65, 5,802.01 and 1,529.71

Step by Step Solution

1. Step 1: Write the proportion equation
   3,870.65 : 5,802.01 = 1,529.71 : x
2. Step 2: Convert to fraction form
   3,870.65/5,802.01 = 1,529.71/x
3. Step 3: Cross multiply
   3,870.65x = 5,802.01 × 1,529.71
4. Step 4: Simplify right side
   3,870.65x = 8,875,374.39
5. Step 5: Solve for x
   x = 8,875,374.39/3,870.65
6. Step 6: Final answer
   x = 2,292.99