Finding the Fourth Proportional to 1,523.02, 2,101.89 and 1,210.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,523.02 : 2,101.89 = 1,210.86 : x
2. Step 2: Convert to fraction form
   1,523.02/2,101.89 = 1,210.86/x
3. Step 3: Cross multiply
   1,523.02x = 2,101.89 × 1,210.86
4. Step 4: Simplify right side
   1,523.02x = 2,545,093.96
5. Step 5: Solve for x
   x = 2,545,093.96/1,523.02
6. Step 6: Final answer
   x = 1,671.08