Finding the Fourth Proportional to 2,145,528.72, 2,960,859.96 and 1,178,748.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,145,528.72 : 2,960,859.96 = 1,178,748.36 : x
2. Step 2: Convert to fraction form
   2,145,528.72/2,960,859.96 = 1,178,748.36/x
3. Step 3: Cross multiply
   2,145,528.72x = 2,960,859.96 × 1,178,748.36
4. Step 4: Simplify right side
   2,145,528.72x = 3,490,108,822,039.67
5. Step 5: Solve for x
   x = 3,490,108,822,039.67/2,145,528.72
6. Step 6: Final answer
   x = 1,626,689.40