Finding the Fourth Proportional to 1,612.96, 2,415.83 and 1,402.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,612.96 : 2,415.83 = 1,402.02 : x
2. Step 2: Convert to fraction form
   1,612.96/2,415.83 = 1,402.02/x
3. Step 3: Cross multiply
   1,612.96x = 2,415.83 × 1,402.02
4. Step 4: Simplify right side
   1,612.96x = 3,387,039.74
5. Step 5: Solve for x
   x = 3,387,039.74/1,612.96
6. Step 6: Final answer
   x = 2,099.89