Finding the Fourth Proportional to 1,123,374.48, 1,685,061.84 and 375,420.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123,374.48 : 1,685,061.84 = 375,420.48 : x
2. Step 2: Convert to fraction form
   1,123,374.48/1,685,061.84 = 375,420.48/x
3. Step 3: Cross multiply
   1,123,374.48x = 1,685,061.84 × 375,420.48
4. Step 4: Simplify right side
   1,123,374.48x = 632,606,724,802.48
5. Step 5: Solve for x
   x = 632,606,724,802.48/1,123,374.48
6. Step 6: Final answer
   x = 563,130.76