Finding the Fourth Proportional to 1,901.52, 2,621.88 and 1,570.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,901.52 : 2,621.88 = 1,570.86 : x
2. Step 2: Convert to fraction form
   1,901.52/2,621.88 = 1,570.86/x
3. Step 3: Cross multiply
   1,901.52x = 2,621.88 × 1,570.86
4. Step 4: Simplify right side
   1,901.52x = 4,118,606.42
5. Step 5: Solve for x
   x = 4,118,606.42/1,901.52
6. Step 6: Final answer
   x = 2,165.95