Finding the Fourth Proportional to 1,856.70, 2,566.62 and 1,487.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,856.70 : 2,566.62 = 1,487.34 : x
2. Step 2: Convert to fraction form
   1,856.70/2,566.62 = 1,487.34/x
3. Step 3: Cross multiply
   1,856.70x = 2,566.62 × 1,487.34
4. Step 4: Simplify right side
   1,856.70x = 3,817,436.59
5. Step 5: Solve for x
   x = 3,817,436.59/1,856.70
6. Step 6: Final answer
   x = 2,056.03