Finding the Fourth Proportional to 1,251,580.93, 1,726,300.38 and 1,209,915.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,251,580.93 : 1,726,300.38 = 1,209,915.82 : x
2. Step 2: Convert to fraction form
   1,251,580.93/1,726,300.38 = 1,209,915.82/x
3. Step 3: Cross multiply
   1,251,580.93x = 1,726,300.38 × 1,209,915.82
4. Step 4: Simplify right side
   1,251,580.93x = 2,088,678,139,834.01
5. Step 5: Solve for x
   x = 2,088,678,139,834.01/1,251,580.93
6. Step 6: Final answer
   x = 1,668,831.87