Finding the Fourth Proportional to 2,100.69, 3,145.14 and 1,583.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,100.69 : 3,145.14 = 1,583.10 : x
2. Step 2: Convert to fraction form
   2,100.69/3,145.14 = 1,583.10/x
3. Step 3: Cross multiply
   2,100.69x = 3,145.14 × 1,583.10
4. Step 4: Simplify right side
   2,100.69x = 4,979,071.13
5. Step 5: Solve for x
   x = 4,979,071.13/2,100.69
6. Step 6: Final answer
   x = 2,370.21