Finding the Fourth Proportional to 1,761,057.37, 2,642,472.42 and 1,312,678.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,761,057.37 : 2,642,472.42 = 1,312,678.63 : x
2. Step 2: Convert to fraction form
   1,761,057.37/2,642,472.42 = 1,312,678.63/x
3. Step 3: Cross multiply
   1,761,057.37x = 2,642,472.42 × 1,312,678.63
4. Step 4: Simplify right side
   1,761,057.37x = 3,468,717,076,098.38
5. Step 5: Solve for x
   x = 3,468,717,076,098.38/1,761,057.37
6. Step 6: Final answer
   x = 1,969,678.63