Finding the Fourth Proportional to 1,590,554.05, 2,194,898.85 and 865,404.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,590,554.05 : 2,194,898.85 = 865,404.59 : x
2. Step 2: Convert to fraction form
   1,590,554.05/2,194,898.85 = 865,404.59/x
3. Step 3: Cross multiply
   1,590,554.05x = 2,194,898.85 × 865,404.59
4. Step 4: Simplify right side
   1,590,554.05x = 1,899,475,528,401.23
5. Step 5: Solve for x
   x = 1,899,475,528,401.23/1,590,554.05
6. Step 6: Final answer
   x = 1,194,222.56