Finding the Fourth Proportional to 2,312.69, 3,189.17 and 1,526.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,312.69 : 3,189.17 = 1,526.99 : x
2. Step 2: Convert to fraction form
   2,312.69/3,189.17 = 1,526.99/x
3. Step 3: Cross multiply
   2,312.69x = 3,189.17 × 1,526.99
4. Step 4: Simplify right side
   2,312.69x = 4,869,818.57
5. Step 5: Solve for x
   x = 4,869,818.57/2,312.69
6. Step 6: Final answer
   x = 2,105.70