Finding the Fourth Proportional to 1,898,663.72, 2,619,874.17 and 1,153,201.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,898,663.72 : 2,619,874.17 = 1,153,201.91 : x
2. Step 2: Convert to fraction form
   1,898,663.72/2,619,874.17 = 1,153,201.91/x
3. Step 3: Cross multiply
   1,898,663.72x = 2,619,874.17 × 1,153,201.91
4. Step 4: Simplify right side
   1,898,663.72x = 3,021,243,883,704.29
5. Step 5: Solve for x
   x = 3,021,243,883,704.29/1,898,663.72
6. Step 6: Final answer
   x = 1,591,247.50